000 00300nam a22001217a 4500
050 _aMED RC963
_bI6
100 _aInternational labour office
245 _aEncyclopaedia of occupational health and safety
260 _aGeneva
_bILO
_c1971
300 _axi,753p.
_bill.
650 _aHealth
942 _cBK
999 _c15032
_d15032