Cita APA (7a ed.)

Cooper, G. A. (1955). New Cretaceus Brachiopoda from Arizona. Smithsonian Institution.

Cita Chicago Style (17a ed.)

Cooper, G. Arthur. New Cretaceus Brachiopoda from Arizona. Washington, D.C: Smithsonian Institution, 1955.

Cita MLA (8a ed.)

Cooper, G. Arthur. New Cretaceus Brachiopoda from Arizona. Smithsonian Institution, 1955.