Cita APA (7a ed.)
Porter, P. A., Grant, M., & Draper, M. Communicating Effectively in English: Oral Communication for Non-Native Speakers. Wadsworth.
Cita estilo Chicago (17a ed.)
Porter, Patricia A., Margaret Grant, y Mary Draper. Communicating Effectively in English: Oral Communication for Non-Native Speakers. Belmont, EUA: Wadsworth.
Cita MLA (9a ed.)
Porter, Patricia A., et al. Communicating Effectively in English: Oral Communication for Non-Native Speakers. Wadsworth.
Precaución: Estas citas no son 100% exactas.