000 00295nam a2200121Ia 4500
100 _aWorld Health Organization
020 _a92 4 157145 4
942 _cBK
245 _aMethyl parathion
260 _aWorld Health Organization, Geneva
_c1993
082 _aR363.7384 W.H.O./E.H.C.
300 _a244
999 _c35416
_d35416