00495nam a22001697a 45000010005000000030010000050050017000150400014000320080041000461000023000872450058001102500006001682600066001743000011002406500043002517000031002945598MX-SIABUC20260702203433.0  aMX-SIABUC991231s        0000000j            000 d40aGelhaus, Robert J.0 aLabor law 7 by Robert J. Gelhaus and James C. Oldhaus4 a94 aNew York :bHarcourt Brace Legal and Professional Publication4 a221 p.  a1.DERECHO DEL TRABAJOz-ESTADOS UNIDOS4 aI.Oldham, James C., coaut.