Proud, A. (2000). Choosing and using external consultants: How to get the best value from working with your external consultants. Fenman.
Chicago-Zitierstil (17. Ausg.)Proud, Arthur. Choosing and Using External Consultants: How to Get the Best Value from Working with Your External Consultants. Ely: Fenman, 2000.
MLA-Zitierstil (8. Ausg.)Proud, Arthur. Choosing and Using External Consultants: How to Get the Best Value from Working with Your External Consultants. Fenman, 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.