APA (7th ed.) Citation

Knechtel, M. M. (1959). Stratigraphy of the Little Rocky Mountains and encircling foothills Montana. U.S. G.P.O..

Chicago Style (17th ed.) Citation

Knechtel, Maxwell M. Stratigraphy of the Little Rocky Mountains and Encircling Foothills Montana. Washington, [D.C.]: U.S. G.P.O., 1959.

MLA (8th ed.) Citation

Knechtel, Maxwell M. Stratigraphy of the Little Rocky Mountains and Encircling Foothills Montana. U.S. G.P.O., 1959.