Style de citation APA (7e éd.)

SIMS, J. A., & JOHNSON, L. E. (1972). Animals in the American economy. The Iowa State University.

Style de citation Chicago (17e éd.)

SIMS, John A., et Leslie E. JOHNSON. Animals in the American Economy. Iowa: The Iowa State University, 1972.

Style de citation MLA (9e éd.)

SIMS, John A., et Leslie E. JOHNSON. Animals in the American Economy. The Iowa State University, 1972.