APA (7th ed.) Citation

Baxter, C. H., Parkes, R. D., & Pardee, F. G. (1939). Mine examination and valuation (2nd ed.). The Authors.

Chicago Style (17th ed.) Citation

Baxter, Charles Homer, Roland Dane Parkes, and Franklin G. Pardee. Mine Examination and Valuation. 2nd ed. Houghton, Mich.: The Authors, 1939.

MLA (8th ed.) Citation

Baxter, Charles Homer, et al. Mine Examination and Valuation. 2nd ed. The Authors, 1939.