Cita APA (7a ed.)
Janssen, W. (1988). Snap beans in the developing world. International Center for Tropical Agriculture.
Cita Chicago Style (17a ed.)
Janssen, W. Snap Beans in the Developing World. International Center for Tropical Agriculture, 1988.
Cita MLA (9a ed.)
Janssen, W. Snap Beans in the Developing World. International Center for Tropical Agriculture, 1988.
Precaución: Estas citas no son 100% exactas.