Leissner, A., Powley, T., & Evans, D. (1977). Intermediate treatment: A community-based action-research study. National Children's Bureau.
Chicago-Zitierstil (17. Ausg.)Leissner, Aryeh, Terry Powley, und Dave Evans. Intermediate Treatment: A Community-based Action-research Study. London: National Children's Bureau, 1977.
MLA-Zitierstil (9. Ausg.)Leissner, Aryeh, et al. Intermediate Treatment: A Community-based Action-research Study. National Children's Bureau, 1977.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.