Jesness, C. F. (1975). An evaluation of the effectiveness of contingency contracting with delinquents. California Youth Authority.
Chicago-Zitierstil (17. Ausg.)Jesness, Carl F. An Evaluation of the Effectiveness of Contingency Contracting with Delinquents. Sacramento, Cal: California Youth Authority, 1975.
MLA-Zitierstil (8. Ausg.)Jesness, Carl F. An Evaluation of the Effectiveness of Contingency Contracting with Delinquents. California Youth Authority, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.