Roe, M. M. (1998). Marketing professional services: Winning new business in the professional services sector (1. publ.). Butterworth-Heinemann.
Chicago-Zitierstil (17. Ausg.)Roe, Michael M. Marketing Professional Services: Winning New Business in the Professional Services Sector. 1. publ. Oxford [u.a.]: Butterworth-Heinemann, 1998.
MLA-Zitierstil (9. Ausg.)Roe, Michael M. Marketing Professional Services: Winning New Business in the Professional Services Sector. 1. publ. Butterworth-Heinemann, 1998.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.