000 00421nam a2200157Ia 4500
008 160808s1979 xx 000 0 eng d
020 _a9241540672
041 _aeng
084 _aL;524
_2CC
245 _aPhotochemical Oxidants /
260 _aGeneva :
_bWorld Health Organisation,
_c1979.
490 _aEnvironmental health criteria
_v7
653 _aMediciene
653 _aPhotochemical Oxidants
999 _c173835
_d173835