APA (7. basım) Alıntı

Villiers, P. (1993). 18 training workshops for leadership development. The McGraw-Hill Companies.

Chicago Style (17. basım) Atıf

Villiers, Peter. 18 Training Workshops for Leadership Development. New York: The McGraw-Hill Companies, 1993.

MLA (9th ed.) Atıf

Villiers, Peter. 18 Training Workshops for Leadership Development. The McGraw-Hill Companies, 1993.