APA (7th ed.) Citation

P, A. I. o. M. (1975). The encyclopedia americana. Volume XV. American Corporation.

Chicago Style (17th ed.) Citation

P, American Institute of Mining. The Encyclopedia Americana. Volume XV. American Corporation, 1975.

MLA (8th ed.) Citation

P, American Institute of Mining. The Encyclopedia Americana. Volume XV. American Corporation, 1975.

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