000 00502 a2200169 4500
080 _a543:63
_bA 849 O
245 1 _aOfficial methods of analysis of the association of official analytical chemists
250 _a11th edn.
260 _bAssociation of Official Analytical Chemists
_c1970
650 _aOfficial Methods
650 _aAnalytical Chemists
700 _aAssociation of Official Analytical Chemists, U.S.A.
100 _a
_d
300 _a1015 p.
942 _cTB
_2udc
901 _a107399
999 _c56978
_d56978