Cita APA (7a ed.)
Ferguson, J. E. (1980). Pasture seed production in Colombia. International Center for Tropical Agriculture.
Cita Chicago Style (17a ed.)
Ferguson, John E. Pasture Seed Production in Colombia. International Center for Tropical Agriculture, 1980.
Cita MLA (9a ed.)
Ferguson, John E. Pasture Seed Production in Colombia. International Center for Tropical Agriculture, 1980.
Precaución: Estas citas no son 100% exactas.