Hinrichs, E. N. (1984). Surficial geologic map of the Sheridan 30ʹ x 60ʹ quadrangle, Wyoming and Montana. U.S. Geological Survey.
Chicago Style (17th ed.) CitationHinrichs, E. Neal. Surficial Geologic Map of the Sheridan 30ʹ X 60ʹ Quadrangle, Wyoming and Montana. Reston, Va.: U.S. Geological Survey, 1984.
MLA (9th ed.) CitationHinrichs, E. Neal. Surficial Geologic Map of the Sheridan 30ʹ X 60ʹ Quadrangle, Wyoming and Montana. U.S. Geological Survey, 1984.
Warning: These citations may not always be 100% accurate.