APA (7th ed.) Citation

Sohn, I. G. (1960). Paleozoic species of Bairdia and related genera. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Sohn, I. G. Paleozoic Species of Bairdia and Related Genera. Washington: United States Department of the Interior, Geological Survey, 1960.

MLA (9th ed.) Citation

Sohn, I. G. Paleozoic Species of Bairdia and Related Genera. United States Department of the Interior, Geological Survey, 1960.

Warning: These citations may not always be 100% accurate.