000 00297nam a2200121Ia 4500
100 _aWHO, United Nations Environment Programme & ILO
020 _a92-4-157190-X
942 _cBK
245 _aXylenes
260 _aauth, Geneva
_c1997
082 _a363.7384 WHO/EHC
300 _axvi,147p figs.,tabs.
999 _c36302
_d36302