Cita APA (7a ed.)

Pettibone, M. H. (1956). Marine Polychaete Worms from Labrador. Smithsonian Institution.

Cita Chicago Style (17a ed.)

Pettibone, Marian H. Marine Polychaete Worms from Labrador. Washington: Smithsonian Institution, 1956.

Cita MLA (8a ed.)

Pettibone, Marian H. Marine Polychaete Worms from Labrador. Smithsonian Institution, 1956.