Ashworth, Suzanne. Seed to Seed: Seed Saving and Growing Techniques for Vegetable Gardeners. Ed. Kent Whealy. Decorah, IA: Seed Savers Exchange, 2002. Print.
Food and Agriculture Organization of the United Nations. "What is Happening to Agrobiodiversity?" What is Agrobiodiversity? 1999. http://www.fao.org/docrep/007/y5609e/y5609e02.htm
Hamir, Arzeena. "You Grow Girl." You Grow Girl. N.p., 4 Oct. 2002. http://yougrowgirl.com/
Hess, Anna. "DIY Grain Thresher and Huller." DIY Grain Thresher and Huller. N.p., 2 Apr. 2010. http://www.waldeneffect.org/blog/DIY_grain_thresher_and_huller/
Linsley, Diane. "Saving Flower Seeds." Saving Flower Seeds. Diane's Flower Seeds, 2008. http://www.dianeseeds.com/saving/flower.html.
Ray, Janisse. The Seed Underground: A Growing Revolution to Save Food. White River Junction, VT: Chelsea Green Pub., 2012. Print.
Rhoades, Heather. "Steps For Heeling In Plants." Gardening Know How. N.p., 2013. http://www.gardeningknowhow.com/garden-how-to/info/heeling-in-plants.htm
Rowe, Jack. "Complete, Free Seed-Saving Instructions." Seed Saving Handbook: Learn How to Save Seeds From Common Garden Vegetables Free! N.p.,
1998. http://howtosaveseeds.com/.