Ashworth, S., & Whealy, K. (2002). Seed to seed: Seed saving and growing techniques for vegetable gardeners (2nd ed.). Seed Savers Exchange.
Chicago Style (17th ed.) CitationAshworth, Suzanne, and Kent Whealy. Seed to Seed: Seed Saving and Growing Techniques for Vegetable Gardeners. 2nd ed. Decorah, Iowa: Seed Savers Exchange, 2002.
MLA (8th ed.) CitationAshworth, Suzanne, and Kent Whealy. Seed to Seed: Seed Saving and Growing Techniques for Vegetable Gardeners. 2nd ed. Seed Savers Exchange, 2002.
Warning: These citations may not always be 100% accurate.