Cita APA

Green, V. E., & Green, V. E. (1968). The 1967 Costa Rican corn campaign a successful venture in basic food crop production in Central America (1. edición.). San José, C.R.: [editor no identificado].

Citación estilo Chicago

Green, Victor E., y Victor E. Green. The 1967 Costa Rican Corn Campaign a Successful Venture in Basic Food Crop Production in Central America. 1. edición. San José, C.R.: [editor no identificado], 1968.

Cita MLA

Green, Victor E., y Victor E. Green. The 1967 Costa Rican Corn Campaign a Successful Venture in Basic Food Crop Production in Central America. 1. edición. San José, C.R.: [editor no identificado], 1968.