Cita APA (7a ed.)
(1980). Chicago buyers' guide. Association of Commerce and Industry.
Cita Chicago Style (17a ed.)
Chicago Buyers' Guide. Chicago: Association of Commerce and Industry, 1980.
Cita MLA (9a ed.)
Chicago Buyers' Guide. Association of Commerce and Industry, 1980.
Precaución: Estas citas no son 100% exactas.