Cita APA (7a ed.)

Ashworth, S., & Whealy, K. (2002). Seed to seed: Seed saving and growing techniques for vegetable gardeners (2nd ed.). Seed Savers Exchange.

Cita Chicago Style (17a ed.)

Ashworth, Suzanne, y Kent Whealy. Seed to Seed: Seed Saving and Growing Techniques for Vegetable Gardeners. 2nd ed. Decorah, Iowa: Seed Savers Exchange, 2002.

Cita MLA (8a ed.)

Ashworth, Suzanne, y Kent Whealy. Seed to Seed: Seed Saving and Growing Techniques for Vegetable Gardeners. 2nd ed. Seed Savers Exchange, 2002.

Precaución: Estas citas no son 100% exactas.