Rogers J. John. (2001). Market Leader; Practice File Cassette; Talk Business: Upper Intermediate Business English. Longman, 2001.
Chicago-Zitierstil (17. Ausg.)Rogers J. John. Market Leader; Practice File Cassette; Talk Business: Upper Intermediate Business English. Longman, 2001, 2001.
MLA-Zitierstil (9. Ausg.)Rogers J. John. Market Leader; Practice File Cassette; Talk Business: Upper Intermediate Business English. Longman, 2001, 2001.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.