000 00433nam a2200157Ia 4500
005 20250212172151.0
008 250212s9999||||xx |||||||||||||| ||und||
020 _c12457.4
040 _aMAIN
082 _a543HEL.N0.1
100 _aKenneth Helrich
245 0 _aOfficial methods of analysis of the association of
_cKenneth Helrich
250 _aEd 15
260 _bAssociation Of Official Analytical Chemists
_c1990
942 _cBK
999 _c35765
_d35765