APA (7th ed.) Citation

Dightman, R. A. (1960). Climates of the states: Montana. U.S. Dept. of Commerce, Weather Bureau.

Chicago Style (17th ed.) Citation

Dightman, R. A. Climates of the States: Montana. Washington, D.C.: U.S. Dept. of Commerce, Weather Bureau, 1960.

MLA (9th ed.) Citation

Dightman, R. A. Climates of the States: Montana. U.S. Dept. of Commerce, Weather Bureau, 1960.