Cita APA (7a ed.)
Sperling, L., Scheidegger, U. C., & Buruchara, R. A. (1994). Designing seed systems for smallholder farmers: Principles derived from bean research in the Great Lakes region of Africa. International Center for Tropical Agriculture.
Cita Chicago Style (17a ed.)
Sperling, L., Urs C. Scheidegger, y Robin Arani Buruchara. Designing Seed Systems for Smallholder Farmers: Principles Derived from Bean Research in the Great Lakes Region of Africa. International Center for Tropical Agriculture, 1994.
Cita MLA (9a ed.)
Sperling, L., et al. Designing Seed Systems for Smallholder Farmers: Principles Derived from Bean Research in the Great Lakes Region of Africa. International Center for Tropical Agriculture, 1994.
Precaución: Estas citas no son 100% exactas.