APA (7th ed.) Citation

Mapel, W. J., Chisholm, W. A., & Bergenback, R. E. (1964). Nonopaque heavy minerals in sandstone of Jurassic and Cretaceous age in the Black Hills, Wyoming and South Dakota. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Mapel, W. J., Wayne A. Chisholm, and Richard Edwards Bergenback. Nonopaque Heavy Minerals in Sandstone of Jurassic and Cretaceous Age in the Black Hills, Wyoming and South Dakota. Washington, D.C.: United States Department of the Interior, Geological Survey, 1964.

MLA (9th ed.) Citation

Mapel, W. J., et al. Nonopaque Heavy Minerals in Sandstone of Jurassic and Cretaceous Age in the Black Hills, Wyoming and South Dakota. United States Department of the Interior, Geological Survey, 1964.