Cita APA (7a ed.)

Collins, H. B., Clark, A. H., & Walker, E. H. (1945). The Aleutian Islands: Their People and Natural History. Smithsonian Institution.

Cita Chicago Style (17a ed.)

Collins, Henrry B., A. H. Clark, y E. H. Walker. The Aleutian Islands: Their People and Natural History. Washington: Smithsonian Institution, 1945.

Cita MLA (9a ed.)

Collins, Henrry B., et al. The Aleutian Islands: Their People and Natural History. Smithsonian Institution, 1945.