000 00309nam a2200121Ia 4500
100 _aWorld Health Organization
020 _a92 4 154286 1
942 _cBK
245 _aMercury
_benvironmental aspects
260 _aWorld Health Organization, Geneva
_c1989
082 _aR363.7384 W.H.O./E.H.C.
300 _a115
999 _c64452
_d64452