Cita APA (7a ed.)
Beed, F. D., & Coyne, D. L. (2010). Biotic constraints. International Institute of Tropical Agriculture.
Cita Chicago Style (17a ed.)
Beed, Fenton D., y Danny L. Coyne. Biotic Constraints. International Institute of Tropical Agriculture, 2010.
Cita MLA (9a ed.)
Beed, Fenton D., y Danny L. Coyne. Biotic Constraints. International Institute of Tropical Agriculture, 2010.
Precaución: Estas citas no son 100% exactas.