Cita APA (7th ed.)
Dudley, L. P. The Encyclopedia Americana: The International Reference Work : Complete in Thirty Volumes. Americana Corporation.
Cita Chicago (17th ed.)
Dudley, Lavinia P. The Encyclopedia Americana: The International Reference Work : Complete in Thirty Volumes. Nueva York, EUA: Americana Corporation.
Cita MLA (9th ed.)
Dudley, Lavinia P. The Encyclopedia Americana: The International Reference Work : Complete in Thirty Volumes. Americana Corporation.
Atenció: Aquestes cites poden no estar 100% correctes.