Cita APA (7a ed.)
Sánchez, P., & Salinas, J. G. (1980). Low input technology for managing oxisols and ultisols in Tropical America. International Center for Tropical Agriculture.
Cita Chicago Style (17a ed.)
Sánchez, P.A, y José G. Salinas. Low Input Technology for Managing Oxisols and Ultisols in Tropical America. International Center for Tropical Agriculture, 1980.
Cita MLA (9a ed.)
Sánchez, P.A, y José G. Salinas. Low Input Technology for Managing Oxisols and Ultisols in Tropical America. International Center for Tropical Agriculture, 1980.
Precaución: Estas citas no son 100% exactas.