APA (7th ed.) Citation

(1967). The encyclopedia americana international edition: : complete in thirty volumes : first published in 1829. Americana corporation.

Chicago Style (17th ed.) Citation

The Encyclopedia Americana International Edition: : Complete in Thirty Volumes : First Published in 1829. New York: Americana corporation, 1967.

MLA (9th ed.) Citation

The Encyclopedia Americana International Edition: : Complete in Thirty Volumes : First Published in 1829. Americana corporation, 1967.