APA (7th ed.) Citation

Woodring, W. P. (1938). Lower Pliocene mollusks and echinoids from the Los Angeles basin, California and their inferred environment. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Woodring, W. P. Lower Pliocene Mollusks and Echinoids from the Los Angeles Basin, California and Their Inferred Environment. Washington: United States Department of the Interior, Geological Survey, 1938.

MLA (9th ed.) Citation

Woodring, W. P. Lower Pliocene Mollusks and Echinoids from the Los Angeles Basin, California and Their Inferred Environment. United States Department of the Interior, Geological Survey, 1938.