Phillips, B. (1977). Effective business communications. Delmar Pub.
Cita Chicago Style (17a ed.)Phillips, Bonnie. Effective Business Communications. NULL: Delmar Pub, 1977.
Cita MLA (9a ed.)Phillips, Bonnie. Effective Business Communications. Delmar Pub, 1977.
Precaución: Estas citas no son 100% exactas.