Cita APA (7a ed.)

American Express Publishing Corporation. Your company. American Express Pub. Corp.

Cita Chicago Style (17a ed.)

American Express Publishing Corporation. Your Company. New York, N.Y.: American Express Pub. Corp.

Cita MLA (9a ed.)

American Express Publishing Corporation. Your Company. American Express Pub. Corp.

Precaución: Estas citas no son 100% exactas.