APA

Vergara B. S., . (1979). A farmers primer on growing rice. New York: International rice research institute.

Chicago

Vergara Benito S, . 1979. A farmers primer on growing rice. New York: International rice research institute.

Harvard

Vergara B. S., . (1979). A farmers primer on growing rice. New York: International rice research institute.

MLA

Vergara Benito S, . A farmers primer on growing rice. New York: International rice research institute. 1979.