TY - BOOK A1 - Haley, J. T1 - Problem-Solving Therapy. San Francisco, CA (Jossey-Bass) 1987. Y1 - 1987 UR - https://opus4.kobv.de/opus4-Fromm/frontdoor/index/index/docId/27937 N1 - Ex libris Marco Bacciagaluppi ER -