Lang, J. B. (1994). The American Express guide to corporate management. Amacom.
Cita Chicago Style (17a ed.)Lang, Jeffrey B. The American Express Guide to Corporate Management. New York: Amacom, 1994.
Cita MLA (8a ed.)Lang, Jeffrey B. The American Express Guide to Corporate Management. Amacom, 1994.
Precaución: Estas citas no son 100% exactas.