APA (7th ed.) Citation

Emmons, W. H., & Calkins, F. C. (1913). Geology and ore deposits of the Philipsburg quadrangle, Montana. U.S. G.P.O..

Chicago Style (17th ed.) Citation

Emmons, William H., and Frank C. Calkins. Geology and Ore Deposits of the Philipsburg Quadrangle, Montana. Washington: U.S. G.P.O., 1913.

MLA (9th ed.) Citation

Emmons, William H., and Frank C. Calkins. Geology and Ore Deposits of the Philipsburg Quadrangle, Montana. U.S. G.P.O., 1913.