Gaya APA

Hiebert, M., Klatt, B. (2001). The Encyclopedia of Leadership - A Practical Guide to Popular Leadership Theories and Techniques . : Salemba Empat.

Gaya MLA

Hiebert, Murray., Klatt, Bruce. "The Encyclopedia of Leadership - A Practical Guide to Popular Leadership Theories and Techniques". : Salemba Empat, 2001. Text.