Lemke, R. W. (1977). Geologic map of the Great Falls quadrangle, Montana. The Survey.
Chicago Style (17th ed.) CitationLemke, Richard W. Geologic Map of the Great Falls Quadrangle, Montana. Reston, Va.: The Survey, 1977.
MLA (9th ed.) CitationLemke, Richard W. Geologic Map of the Great Falls Quadrangle, Montana. The Survey, 1977.
Warning: These citations may not always be 100% accurate.