APA (7th ed.) Citation

Hezzelwood, G. W. (1930). Mining methods and costs at Consolidated Cortez Silver Mine, Cortez, Nev. [publisher not identified].

Chicago Style (17th ed.) Citation

Hezzelwood, George W. Mining Methods and Costs at Consolidated Cortez Silver Mine, Cortez, Nev. Washington, D.C.: [publisher not identified], 1930.

MLA (9th ed.) Citation

Hezzelwood, George W. Mining Methods and Costs at Consolidated Cortez Silver Mine, Cortez, Nev. [publisher not identified], 1930.