APA (7th ed.) Citation

Lang, W. L., Myers, R. C., & Russell, C. M. (1979). Montana, our land & people. Pruett Pub. Co..

Chicago Style (17th ed.) Citation

Lang, William L., Rex C. Myers, and Charles M. Russell. Montana, Our Land & People. Boulder, Colo.: Pruett Pub. Co., 1979.

MLA (9th ed.) Citation

Lang, William L., et al. Montana, Our Land & People. Pruett Pub. Co., 1979.