APA (7th ed.) Citation

Richards, R. H. (1903). Ore dressing / Robert H. Richards. Engineering and Mining Journal.

Chicago Style (17th ed.) Citation

Richards, Robert H. Ore Dressing / Robert H. Richards. Engineering and Mining Journal, 1903.

MLA (9th ed.) Citation

Richards, Robert H. Ore Dressing / Robert H. Richards. Engineering and Mining Journal, 1903.

Warning: These citations may not always be 100% accurate.