APA (7th ed.) Citation

Repenning, C. A., & Tedford, R. H. (1977). Otarioid seals of the Neogene: Classification, historical zoogeography, and temporal correlation of the sea lions and walruses from the North Pacific region. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Repenning, Charles Albert, and Richard H. Tedford. Otarioid Seals of the Neogene: Classification, Historical Zoogeography, and Temporal Correlation of the Sea Lions and Walruses from the North Pacific Region. Washington: United States Department of the Interior, Geological Survey, 1977.

MLA (9th ed.) Citation

Repenning, Charles Albert, and Richard H. Tedford. Otarioid Seals of the Neogene: Classification, Historical Zoogeography, and Temporal Correlation of the Sea Lions and Walruses from the North Pacific Region. United States Department of the Interior, Geological Survey, 1977.