Bardot, J. (2012, October 18). So what's vertical gardening all about? 13 reasons to grow your vegetables in a vertical garden. Retrieved from
BBC. (2009, December 14). Controlling plant growth. Retrieved from http://www.bbc.co.uk/schools/gcsebitesize/science/add_gateway_pre_2011/living/controlplantgrowthrev1.shtml
Binelli, M. (2012, November 9). How detroit became the world capital of staring at abandoned old buildings. Retrieved from http://www.nytimes.com/2012/11/11/magazine/how-detroit-became-the-world-capital-of-staring-at-abandoned-old-buildings.html?pagewanted=all&_r=0
Black, K. (2009, October 16). The disadvantages of hydroponics. Retrieved from http://www.gardenguides.com/75433-disadvantages-hydroponics.html
Bonnie Plants. (2013). Growing spinach. Retrieved from http://bonnieplants.com/growing/growing-spinach/
Brown, T. L. (2009, January 12). Wooster campus protocol for proper disposal of sharp materials. Retrieved from http://www.oardc.ohio-state.edu/ehs/images/Proper_Disposal_of_Sharp_Materials2.pdf
D’Gardener. (2008, May 17). Aeroponics – benefits and disadvantages. Retrieved from http://www.gardeningsite.com/aeroponics/aeroponics-benefits-and-disadvantages/
Department of Agriculture, Forestry and Fisheries. (2011, June 21). Hydroponic vegetable production. Retrieved from http://www.nda.agric.za/docs/Brochures/prodGuideHydroVeg.pdf
Despommier, D. (2010, October 12). Learn more. Retrieved from http://www.verticalfarm.com/more
Despommier, D. (2004, August 2). The vertical farm project - agriculture for the 21st century and beyond. Retrieved from http://www.verticalfarm.com
Fitzgerald, J. (2011, January 20). Environmental benefits for vertical gardens. Retrieved from http://www.homeimprovementpages.com.au/article/environmental_benefits_for_vertical_gardens
Freedrinkingwater.com. (2006, March 27). Water quality and plants . Retrieved from http://www.freedrinkingwater.com/water-education3/3-water-plants.htm
Horizen Hydroponics. (2011, November). Horizen hydroponics newsletter. 2(11), Retrieved from http://myemail.constantcontact.com/Horizen-Hydroponics-Newsletter.html?soid=1102581664063&aid=3kWukzhNCvE
How Stuff Works. (2009, August 24). Capillary action. Retrieved from http://science.howstuffworks.com/dictionary/physics-terms/capillary-action-info.htm
Hydroponics Center. (2011, January 28). Disadvantages of hydroponics. Retrieved from http://www.hydroponics-center.com/2011/01/disadvantages-of-hydroponics.html
Hydroponic Gardening. (2013). The iloveindia website. Retrieved from http://lifestyle.iloveindia.com/lounge/hydroponic-gardening-9301.html.
Hydroponic Setup. (2010, August 21). Top 6 advantages of hydroponics. Retrieved from http://www.hydroponicsetup.org/2010/08/top-6-advantages-of-hydroponics/
Kaushik. (2013, August 21). Singapore's vertical farms. Retrieved from http://www.amusingplanet.com/2013/08/singapores-vertical-farms.html
Mayo Clinic. (2009, December 27). Corneal abrasion (scratch): First aid. Retrieved from http://www.mayoclinic.com/health/first-aid-corneal-abrasion/FA00037
McCarthy, M. (2013, 22 July). Advantages and disadvantages of aquaponics.
Retrieved from https://sites.google.com/site/aquapanaponics/4-project-updates/advantagesanddisadvantagesofaquaponics
Organic Gardening. (2013). Spinach growing guide. Retrieved from http://www.organicgardening.com/learn-and-grow/spinach-growing-guide
Pleasant, B. (2010, March). Starter vegetable gardens: 24 no-fail plans for small organic gardens. (p. 165). Storey Publishing, LLC.
Rakocy, J., Bailey, D., Shultz, C., & Thoman, E. (2013, 22 July). Update on tilapia and vegetable production in the UVI aquaponic system.
Retrieved from http://aquaponicsglobal.com/wp-content/uploads/2012/02/Update-on-Tilapia-and-Vegetable-Production-in-the-UVI-Aquaponic-System.pdf
Sanders, D. C. (2001, February 1). Spinach. Retrieved from http://www.ces.ncsu.edu/hil/hil-17.html
Saygin, B. (2011, February 7). Advantages of soilless agriculture. Retrieved from http://www.sayginplast.com.tr/en/ttarimavantaj.asp
Science Buddies. (2005, February 16). Measuring plant growth.
Retrieved from http://www.sciencebuddies.org/science-fair-projects/project_ideas/PlantBio_measuring_growth.shtml
Setterfield, M. (1997, March ). Abandoned buildings: models for legislative & enforcement reform . Retrieved from http://www.trincoll.edu/depts/tcn/research_reports/resrch23.htm
Sky Greens. (2013, July 15). A-go-gro vertical farming. Retrieved from http://skygreens.appsfly.com/Media
Surhone, L., Tennoe, M., & Henssenow, S. (2011, March 13). Passive hydroponics. VDM Publishing.
Swan, N. (2013, June 21). Singapore strives to promote food security in face of land scarcity.
Retrieved from http://seedstock.com/2013/06/21/singapore-strives-to-promote-food-security-in-face-of-land-scarcity/
True Aeroponics™. (2013, July 23). How aeroponics work - questions and answers about aeroponics. Retrieved from http://www.aeroponics.com/aero17.HTM
Turner, B. (2008, October 20). How hydroponics works. Retrieved from http://home.howstuffworks.com/lawn-garden/professional-landscaping/alternative-methods/hydroponics.htm
United States Department of Agriculture. (2013, July 31). Nutrient data for 11457, spinach, raw. Retrieved from http://ndb.nal.usda.gov/ndb/foods/show/3151?qlookup=11457&format=Full&max=25&man=&lfacet=&new=1
University of Arizona. (2013, August 21). Environmental factors that affect plant growth.