APA (7th ed.) Citation

Kellogg, K. S., & Williams, V. S. (1998). Geologic map of the Ennis 30ʹ x 60ʹ quadrangle, Madison and Gallatin Counties, Montana. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Kellogg, Karl S., and Van S. Williams. Geologic Map of the Ennis 30ʹ X 60ʹ Quadrangle, Madison and Gallatin Counties, Montana. [Reston, Va.]: U.S. Dept. of the Interior, U.S. Geological Survey, 1998.

MLA (9th ed.) Citation

Kellogg, Karl S., and Van S. Williams. Geologic Map of the Ennis 30ʹ X 60ʹ Quadrangle, Madison and Gallatin Counties, Montana. U.S. Dept. of the Interior, U.S. Geological Survey, 1998.