APA (7th ed.) Citation

Imlay, R. W. (1982). Late Bajocian ammonites from southern Alaska. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Imlay, Ralph W. Late Bajocian Ammonites from Southern Alaska. Washington: United States Department of the Interior, Geological Survey, 1982.

MLA (9th ed.) Citation

Imlay, Ralph W. Late Bajocian Ammonites from Southern Alaska. United States Department of the Interior, Geological Survey, 1982.