Παραπομπή APA

George, C. S. (1977). Supervision in action: The art of managing others. Prentice Hall of India.

Παραπομπή Chicago Style

George, Claude S. Supervision in Action: The Art of Managing Others. Prentice Hall of India, 1977.

Παραπομπή MLA

George, Claude S. Supervision in Action: The Art of Managing Others. Prentice Hall of India, 1977.