Gaya APA

Mcgonagle, J, J., Vella, C, M. (2001). How to use a consultant in your company: a manager's and executives guide . New York: John Wiley and Sons.

Gaya MLA

Mcgonagle, John, J.., Vella, Carolyn, M.. "How to use a consultant in your company: a manager's and executives guide". New York: John Wiley and Sons, 2001. Text.