APA (7th ed.) Citation

Brobst, D. A., & Pratt, W. P. (1973). United States Mineral Resources. United States Government Printing Office.

Chicago Style (17th ed.) Citation

Brobst, Donald A., and Walden P. Pratt. United States Mineral Resources. Washington, DC: United States Government Printing Office, 1973.

MLA (9th ed.) Citation

Brobst, Donald A., and Walden P. Pratt. United States Mineral Resources. United States Government Printing Office, 1973.

Warning: These citations may not always be 100% accurate.