APA (7th ed.) Citation

Sheppard, R. A., & Gude, A. J. (1965). Potash feldspar of possible economic value in the Barstow formation, San Bernardino County, California. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Sheppard, Richard A., and Arthur J. Gude. Potash Feldspar of Possible Economic Value in the Barstow Formation, San Bernardino County, California. Washington: United States Department of the Interior, Geological Survey, 1965.

MLA (9th ed.) Citation

Sheppard, Richard A., and Arthur J. Gude. Potash Feldspar of Possible Economic Value in the Barstow Formation, San Bernardino County, California. United States Department of the Interior, Geological Survey, 1965.