APA (7th ed.) Citation

Institute, A. (1975). The encyclopedia americana. Volume IV. Amercana Corporation.

Chicago Style (17th ed.) Citation

Institute, American. The Encyclopedia Americana. Volume IV. Amercana Corporation, 1975.

MLA (8th ed.) Citation

Institute, American. The Encyclopedia Americana. Volume IV. Amercana Corporation, 1975.

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