Royster, E. (1975). Evaluation of the Philadelphia youth in conflict service project. National Criminal Justice Reference Service.
Chicago-Zitierstil (17. Ausg.)Royster, Eugene. Evaluation of the Philadelphia Youth in Conflict Service Project. Rockville, Md: National Criminal Justice Reference Service, 1975.
MLA-Zitierstil (8. Ausg.)Royster, Eugene. Evaluation of the Philadelphia Youth in Conflict Service Project. National Criminal Justice Reference Service, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.