APA (7e ed.) Bronvermelding

Carpenter, F. G. (1907). How the world is fed. American Book Company.

Chicago (17e ed.) Bronvermelding

Carpenter, Frank G. How the World Is Fed. New York: American Book Company, 1907.

MLA (8e ed.) Bronvermelding

Carpenter, Frank G. How the World Is Fed. American Book Company, 1907.