APA (7th ed.) Citation

Richards, R. H., Locke, C. E., & Bray, J. L. (1925). A text book of ore dressing (2d ed., completely rev. and rewritten.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Richards, Robert H., Charles E. Locke, and John Leighton Bray. A Text Book of Ore Dressing. 2d ed., completely rev. and rewritten. New York [etc.]: McGraw-Hill, 1925.

MLA (8th ed.) Citation

Richards, Robert H., et al. A Text Book of Ore Dressing. 2d ed., completely rev. and rewritten. McGraw-Hill, 1925.