Cita APA

Lombardo, H. A., & Lombardo, H. A. (1969). Research on agricultural development in Central America. New York, New York: Agricultural Development Council.

Citación estilo Chicago

Lombardo, Heraclio A., y Heraclio A. Lombardo. Research On Agricultural Development in Central America. New York, New York: Agricultural Development Council, 1969.

Cita MLA

Lombardo, Heraclio A., y Heraclio A. Lombardo. Research On Agricultural Development in Central America. New York, New York: Agricultural Development Council, 1969.