Cita APA (7a ed.)
Ferguson, J. E. (1991). Seed supply development of new tropical pasture species in Colombia. International Center for Tropical Agriculture.
Cita Chicago Style (17a ed.)
Ferguson, John E. Seed Supply Development of New Tropical Pasture Species in Colombia. International Center for Tropical Agriculture, 1991.
Cita MLA (9a ed.)
Ferguson, John E. Seed Supply Development of New Tropical Pasture Species in Colombia. International Center for Tropical Agriculture, 1991.
Precaución: Estas citas no son 100% exactas.