Cita APA (7a ed.)
Gallopín, G. C. (1995). Ecological prospective of South America. International Center for Tropical Agriculture.
Cita Chicago Style (17a ed.)
Gallopín, Gilberto C. Ecological Prospective of South America. International Center for Tropical Agriculture, 1995.
Cita MLA (9a ed.)
Gallopín, Gilberto C. Ecological Prospective of South America. International Center for Tropical Agriculture, 1995.
Precaución: Estas citas no son 100% exactas.