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.