APA引文

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引文

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

警告：這些引文格式不一定是100％准確.