APA (7th ed.) Citation

Smith, R. (1967). Stratigraphic cross section of Paleozoic rocks, Oklahoma to Saskatchewan. American Association of Petroleum Geologists.

Chicago Style (17th ed.) Citation

Smith, Russell. Stratigraphic Cross Section of Paleozoic Rocks, Oklahoma to Saskatchewan. Tulsa, Okla.: American Association of Petroleum Geologists, 1967.

MLA (9th ed.) Citation

Smith, Russell. Stratigraphic Cross Section of Paleozoic Rocks, Oklahoma to Saskatchewan. American Association of Petroleum Geologists, 1967.

Warning: These citations may not always be 100% accurate.