APA (7th ed.) Citation

Corporation, A. (1971). The Encyclopedia Americana: International edition. Americana Corporation.

Chicago Style (17th ed.) Citation

Corporation, Americana. The Encyclopedia Americana: International Edition. Americana Corporation, 1971.

MLA (8th ed.) Citation

Corporation, Americana. The Encyclopedia Americana: International Edition. Americana Corporation, 1971.

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