Cita APA (7th ed.)

Sperling, L., & Loevinsohn, M. (1996). Using Diversity: Enhancing and Maintaining Genetic Resources on Farm. International Development Research Centre.

Cita Chicago (17th ed.)

Sperling, Louise, i Michael Loevinsohn. Using Diversity: Enhancing and Maintaining Genetic Resources on Farm. New Delhi: International Development Research Centre, 1996.

Cita MLA (9th ed.)

Sperling, Louise, i Michael Loevinsohn. Using Diversity: Enhancing and Maintaining Genetic Resources on Farm. International Development Research Centre, 1996.