Gaya APA

Bunker, D, R., Wijnberg, M, H. (1988). Supervision and performance : managing professional work in human service organizations . San Francisco: Jossey-Bass Publishing.

Gaya MLA

Bunker, Douglas, R.., Wijnberg, Marion, H.. "Supervision and performance : managing professional work in human service organizations". San Francisco: Jossey-Bass Publishing, 1988. Text.