Porter, P., Grant, M. Communicating effecvtively in English. Belmont: Wadsworth, 1992 251 p.: ill. 0-534-17268-7.
Porter, P., Grant, M. Communicating effecvtively in English. Belmont: Wadsworth, 1992 251 p.: ill. 0-534-17268-7.
Porter, P., Grant, M. (1992) Communicating effecvtively in English, Belmont: Wadsworth 251 p.: ill. 0-534-17268-7.
Porter, P., & Grant, M. (1992). Communicating effecvtively in English. Oral Communication for Non-Native Speakers. Belmont: Wadsworth, 251 p.: ill.
Porter P, Grant M. Communicating effecvtively in English: Oral Communication for Non-Native Speakers. Belmont: Wadsworth; 1992. p. 251 p.: ill. ISBN: 0-534-17268-7.