Thomas, E. J. (1984). Designing interventions for the helping professions. Beverly Hill, Cliff : Sage Pub.
Čikaški stil citiranja (17. izdanje)Thomas, Edwin J. Designing Interventions for the Helping Professions. Beverly Hill, Cliff : Sage Pub, 1984.
MLA način citiranja (9. izdanje)Thomas, Edwin J. Designing Interventions for the Helping Professions. Beverly Hill, Cliff : Sage Pub, 1984.
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