Williams, T. (2010). Positioning for professionals: How professional knowledge firms can differentiate their way to success. Wiley.
Chicago-Zitierstil (17. Ausg.)Williams, Tim. Positioning for Professionals: How Professional Knowledge Firms Can Differentiate Their Way to Success. Hoboken, N.J: Wiley, 2010.
MLA-Zitierstil (9. Ausg.)Williams, Tim. Positioning for Professionals: How Professional Knowledge Firms Can Differentiate Their Way to Success. Wiley, 2010.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.