Cita APA (7a ed.)
Grof, B., & Thomas, D. (1984). Agronomic evaluation of grasses in the tropical savannas of South America. 3. International Center for Tropical Agriculture.
Cita Chicago Style (17a ed.)
Grof, B., y D. Thomas. Agronomic Evaluation of Grasses in the Tropical Savannas of South America. 3. International Center for Tropical Agriculture, 1984.
Cita MLA (9a ed.)
Grof, B., y D. Thomas. Agronomic Evaluation of Grasses in the Tropical Savannas of South America. 3. International Center for Tropical Agriculture, 1984.
Precaución: Estas citas no son 100% exactas.