APA citiranje

GIBSON, J. (1990). SUPERVISORY CHALLENGES. MERRILL PUB. CO.

Chicago Style (17th ed.) Citation

GIBSON, J.W. SUPERVISORY CHALLENGES. COLUMBUS: MERRILL PUB. CO, 1990.

MLA citiranje

GIBSON, J.W. SUPERVISORY CHALLENGES. MERRILL PUB. CO, 1990.