000 00299nam a22001217a 4500
020 _a9221020606
082 _a344.046
100 _aILO
245 _aMan in his working environment:
_bA workers' education manual /
_cILO
260 _aGeneva
_bILO
_cc1979
300 _axii, 142p.:
_bill.;
942 _cBK01
999 _c3488
_d3488