RT Book T1 Helping networks and human services T2 Sage library of social research JF Sage library of social research A2 Froland, Charles LA English PP Beverley Hills, Calif. PB Sage Publ. YR 1981 ED 1st pr. UL https://krimdok.uni-tuebingen.de/Record/441612903 CN HV40 SN 0-8039-1625-6 SN 0-8039-1626-4 K1 Social Service : Case studies K1 Social Structure : Case studies K1 Helping behavior : Case studies K1 Volunteer workers in social service : Case studies K1 USA : Sozialarbeit