(2003). C4E: Communications for effectiveness. C4E Consulting Services.
Cita Chicago Style (17a ed.)C4E: Communications for Effectiveness. Valencia: C4E Consulting Services, 2003.
Cita MLA (9a ed.)C4E: Communications for Effectiveness. C4E Consulting Services, 2003.
Precaución: Estas citas no son 100% exactas.