Cita APA (7a ed.)
Professional Secretaries International. (1997). OfficePro. Professional Secretaries International.
Cita Chicago Style (17a ed.)
Professional Secretaries International. OfficePro. Kansas City, MO: Professional Secretaries International, 1997.
Cita MLA (9a ed.)
Professional Secretaries International. OfficePro. Professional Secretaries International, 1997.
Precaución: Estas citas no son 100% exactas.