APA (7e ed.) Bronvermelding
Carkhuff, R. R. (1973). The art of problem solving. Human resource Development Press.
Chicago (17e ed.) Bronvermelding
Carkhuff, Robert R. The Art of Problem Solving. Massachusetts: Human resource Development Press, 1973.
MLA (9e ed.) Bronvermelding
Carkhuff, Robert R. The Art of Problem Solving. Human resource Development Press, 1973.
Let op: Deze citaties zijn niet altijd 100% accuraat.