APA (7th ed.) Citation

Imlay, R. W. (1967). The Mesozoic pelecypods Otapiria Marwick and Lupherella Imlay, new genus, in the United States. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Imlay, Ralph W. The Mesozoic Pelecypods Otapiria Marwick and Lupherella Imlay, New Genus, in the United States. Washington: United States Department of the Interior, Geological Survey, 1967.

MLA (9th ed.) Citation

Imlay, Ralph W. The Mesozoic Pelecypods Otapiria Marwick and Lupherella Imlay, New Genus, in the United States. United States Department of the Interior, Geological Survey, 1967.