Cita APA (7th ed.)

(1961). The Encyclopedia Americana: The international reference work. Americana Corp. of Canada.

Cita Chicago (17th ed.)

The Encyclopedia Americana: The International Reference Work. Montreal: Americana Corp. of Canada, 1961.

Cita MLA (9th ed.)

The Encyclopedia Americana: The International Reference Work. Americana Corp. of Canada, 1961.

Atenció: Aquestes cites poden no estar 100% correctes.