Παραπομπή APA

Caldwell, H. (2001). art of motivating and leading people. Pentagon Press.

Παραπομπή Chicago Style

Caldwell, Hardy. Art of Motivating and Leading People. New Delhi: Pentagon Press, 2001.

Παραπομπή MLA

Caldwell, Hardy. Art of Motivating and Leading People. Pentagon Press, 2001.