APA (7th ed.) Citation

American Geological Institute. (1954). Directory of geologists and exploration geophysicists in member societies of the American Geological Institute. [publisher not identified].

Chicago Style (17th ed.) Citation

American Geological Institute. Directory of Geologists and Exploration Geophysicists in Member Societies of the American Geological Institute. Washington: [publisher not identified], 1954.

MLA (9th ed.) Citation

American Geological Institute. Directory of Geologists and Exploration Geophysicists in Member Societies of the American Geological Institute. [publisher not identified], 1954.