Cita APA (7a ed.)
Wortmann, C. S., & Allen, D. J. (1994). African bean production environments: Their definition, characteristics and constraints. International Center for Tropical Agriculture.
Cita Chicago Style (17a ed.)
Wortmann, Charles S., y David J. Allen. African Bean Production Environments: Their Definition, Characteristics and Constraints. International Center for Tropical Agriculture, 1994.
Cita MLA (9a ed.)
Wortmann, Charles S., y David J. Allen. African Bean Production Environments: Their Definition, Characteristics and Constraints. International Center for Tropical Agriculture, 1994.
Precaución: Estas citas no son 100% exactas.