00637ntaaa2200205   45000030003000000050017000030080021000200400037000410820017000781000031000952450040001262500010001662600054001763000010002305000041002406500023002819420007003049990017003119520103003280120251027202611.00714s1973  ag    01   aAR-BaBNbspacAR-BaBNeaacrdRIC  a331.8800 P44  aPeterson, Florence 925204  aEl movimiento obrero norteamericano  a1 ed.  aBuenos Aires : bEdiciones Marymar, cc1945, 1963  a299 p  aEstudio de los sindicatos de obreros  aobreros-sindicatos  cBK  c21102d21102  00104070aBPbBPd2025-10-27i24950l0o331.8800 P44p24950r2025-10-27 20:26:11w2025-10-27yBK