APA (7th ed.) Citation

Kirk, E., & Amsden, T. W. (1952). Upper Silurian brachiopods from southeastern Alaska. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Kirk, Edwin, and Thomas William Amsden. Upper Silurian Brachiopods from Southeastern Alaska. Washington: United States Department of the Interior, Geological Survey, 1952.

MLA (9th ed.) Citation

Kirk, Edwin, and Thomas William Amsden. Upper Silurian Brachiopods from Southeastern Alaska. United States Department of the Interior, Geological Survey, 1952.