Cite
MLA (8th Edition)
Imlay, Ralph W. Jurassic Paleobiogeography of Alaska. United States Department of the Interior, Geological Survey, 1973.
APA (7th Edition)
Imlay, R. W. (1973). Jurassic paleobiogeography of Alaska. United States Department of the Interior, Geological Survey.
Chicago (17th Edition)
Imlay, Ralph W. Jurassic Paleobiogeography of Alaska. Washington: United States Department of the Interior, Geological Survey, 1973.