Plafker, G. (1956). Occurrence of diatomaceous earth near Kenai, Alaska. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationPlafker, George. Occurrence of Diatomaceous Earth Near Kenai, Alaska. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1956.
MLA (9th ed.) CitationPlafker, George. Occurrence of Diatomaceous Earth Near Kenai, Alaska. United States Department of the Interior, Geological Survey, 1956.
Warning: These citations may not always be 100% accurate.