Geological Survey (U.S.). (1941). Geophysical Abstracts 102, July-Sept. 1940. [s.n.].
Chicago Style (17th ed.) CitationGeological Survey (U.S.). Geophysical Abstracts 102, July-Sept. 1940. [Washington]: [s.n.], 1941.
MLA (9th ed.) CitationGeological Survey (U.S.). Geophysical Abstracts 102, July-Sept. 1940. [s.n.], 1941.
Warning: These citations may not always be 100% accurate.