Cita APA (7a ed.)

Walcott, C. D. (1914). Cambrian geology and paleontology III. Smithsonian Institution.

Cita Chicago Style (17a ed.)

Walcott, Charles D. Cambrian Geology and Paleontology III. Washington: Smithsonian Institution, 1914.

Cita MLA (9a ed.)

Walcott, Charles D. Cambrian Geology and Paleontology III. Smithsonian Institution, 1914.