Cita APA (7a ed.)
Sperling, L., Scheidegger, U. C., & Buruchara, R. A. (1992). Designing bean seed systems for smallholders.
Cita Chicago Style (17a ed.)
Sperling, L., Urs C. Scheidegger, y Robin Arani Buruchara. Designing Bean Seed Systems for Smallholders. 1992.
Cita MLA (9a ed.)
Sperling, L., et al. Designing Bean Seed Systems for Smallholders. 1992.
Precaución: Estas citas no son 100% exactas.