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001 000085457
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008 931021t19901990xxua r 000 0 eng d
020 _a0-935584-42-0
035 _a176326
035 _a176327
035 _aUIA0085457
040 _aUIASF
_cUIASF
041 0 _aENG
050 4 _aS 587
_bA73.1990
100 _aAssociation of Official Analytical Chemists
245 1 0 _aOfficial methods of analysis of the Association of Official Analytical Chemists /
_ced. by Kenneth Helrich
250 _a15 ed.
260 _aArlington, Va. :
_bThe Association,
_cc1990
300 _a2 v. :
_bil., tablas ;
_c28 cm
500 _aIncluye índices.
650 0 _aQuímica agrícola.
650 0 _aQuímica analítica.
700 1 _aHelrich, Kenneth
905 _a01
942 1 _cNEWBFXC1
999 _c84313
_d84313
980 _851
_gRonald RUIZ