APA (7th ed.) Citation

Geological Survey (U.S.) & Amos, D. H. (1987). Geologic map of the Marble Hill quadrangle, Bollinger County, Missouri. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Dewey Harold Amos. Geologic Map of the Marble Hill Quadrangle, Bollinger County, Missouri. Reston, Va.: The Survey, 1987.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Dewey Harold Amos. Geologic Map of the Marble Hill Quadrangle, Bollinger County, Missouri. The Survey, 1987.