APA (7th ed.) Citation

Lewis, R. S. (1939). Mining, the priceless heritage. Extension Division, University of Utah.

Chicago Style (17th ed.) Citation

Lewis, Robert S. Mining, the Priceless Heritage. Salt Lake City: Extension Division, University of Utah, 1939.

MLA (8th ed.) Citation

Lewis, Robert S. Mining, the Priceless Heritage. Extension Division, University of Utah, 1939.

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