APA (7th ed.) Citation

Geological Survey (U.S.) & Tysdal, R. G. (1990). Geologic map of the Sphinx Mountain quadrangle and adjacent parts of the Cameron, Cliff Lake, and Hebgen Dam quadrangles, Montana. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Russell G. Tysdal. Geologic Map of the Sphinx Mountain Quadrangle and Adjacent Parts of the Cameron, Cliff Lake, and Hebgen Dam Quadrangles, Montana. Reston, Va.: The Survey, 1990.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Russell G. Tysdal. Geologic Map of the Sphinx Mountain Quadrangle and Adjacent Parts of the Cameron, Cliff Lake, and Hebgen Dam Quadrangles, Montana. The Survey, 1990.