Simmons, J. (2011). Room 121: A masterclass in writing and communication in business. Marshall Cavendish Business.
Chicago-Zitierstil (17. Ausg.)Simmons, John. Room 121: A Masterclass in Writing and Communication in Business. London: Marshall Cavendish Business, 2011.
MLA-Zitierstil (9. Ausg.)Simmons, John. Room 121: A Masterclass in Writing and Communication in Business. Marshall Cavendish Business, 2011.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.