Cita APA (7a ed.)
Allen, D. J., Dessert, M., Trutmann, P., & Voss, J. (1989). Common beans in Africa and their constraints. International Center for Tropical Agriculture.
Cita Chicago Style (17a ed.)
Allen, David J., M. Dessert, P. Trutmann, y J. Voss. Common Beans in Africa and Their Constraints. International Center for Tropical Agriculture, 1989.
Cita MLA (9a ed.)
Allen, David J., et al. Common Beans in Africa and Their Constraints. International Center for Tropical Agriculture, 1989.
Precaución: Estas citas no son 100% exactas.