APA (7th ed.) Citation

Corporation, A. (1980). The Encyclopedia Americana: Vol. 6 : Cathedrals to Civil War. Americana Corporation.

Chicago Style (17th ed.) Citation

Corporation, Americana. The Encyclopedia Americana: Vol. 6 : Cathedrals to Civil War. Americana Corporation, 1980.

MLA (8th ed.) Citation

Corporation, Americana. The Encyclopedia Americana: Vol. 6 : Cathedrals to Civil War. Americana Corporation, 1980.

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