APA (7th ed.) Citation

Roberts, W. L., & Rapp, G. R. (1965). Mineralogy of the Black Hills. ESPE Printing Company.

Chicago Style (17th ed.) Citation

Roberts, Willard Lincoln., and George Robert Rapp. Mineralogy of the Black Hills. Rapid City, S.D.: ESPE Printing Company, 1965.

MLA (8th ed.) Citation

Roberts, Willard Lincoln., and George Robert Rapp. Mineralogy of the Black Hills. ESPE Printing Company, 1965.