00421nam a2200133Ia 4500008004100000040001700041082002300058100002100081245006100102250001300163260004600176300001500222650005000237190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta361.3bH218T  aHamilton, Gordon 0aTheory and practice of social case workcGordon Hamilton  a2nd rev.  aNew YorkbColumbia University Pressc1951  avii, 328p.  aSocial services; Public welfare; Interviewing