00366nam a22001457ar4500001000500000005001700005008004100022040001200063082001600075245004600091260003800137300001100175650001900186700001500205430320250110064432.0921218s1990 ag 000 0 spa d aclsautm04a361.3bS49100aServicio social año 2000 /cT.H. Waltz. aBuenos Aires :bHumanitas,c1990. a140 p.04aTRABAJO SOCIAL1 aWaltz, T.H