Cita APA

Barrett, O. W. (1928). The tropical crops. The Macmillan Company.

Citación estilo Chicago

Barrett, Otis Warren. The Tropical Crops. New York: The Macmillan Company, 1928.

Cita MLA

Barrett, Otis Warren. The Tropical Crops. The Macmillan Company, 1928.

Warning: These citations may not always be 100% accurate.