Cita APA (7a ed.)

(1952). The ENCYLOPEDIA Americana: Complete in thirty volumes. Americana Corporation.

Cita Chicago Style (17a ed.)

The ENCYLOPEDIA Americana: Complete in Thirty Volumes. Americana Corporation, 1952.

Cita MLA (9a ed.)

The ENCYLOPEDIA Americana: Complete in Thirty Volumes. Americana Corporation, 1952.