APA (7th ed.) Citation

Porter, P. A., & Grant, M. (1998). Communicating effectively in English: Oral communication for non-native speakers (2. ed., [Nachdr.].). Heinle & Heinle.

Chicago Style (17th ed.) Citation

Porter, Patricia A., and Margaret Grant. Communicating Effectively in English: Oral Communication for Non-native Speakers. 2. ed., [Nachdr.]. Boston, Mass: Heinle & Heinle, 1998.

MLA (9th ed.) Citation

Porter, Patricia A., and Margaret Grant. Communicating Effectively in English: Oral Communication for Non-native Speakers. 2. ed., [Nachdr.]. Heinle & Heinle, 1998.