HELGESEN, M. (1995). Workplace English Office File: Student book. Longman.
Chicago Style (17th ed.) CitationHELGESEN, Marc. Workplace English Office File: Student Book. Longman, 1995.
MLA (8th ed.) CitationHELGESEN, Marc. Workplace English Office File: Student Book. Longman, 1995.
Warning: These citations may not always be 100% accurate.