000 006250000a22002050004500
001 19836
010 _a0935584420
090 _a19836
100 _a20190520 frey50
101 _aeng
102 _aUS
200 0 1 _aOfficial methods of analysis
_fof the Association of Official Analytical Chemists ; ed. lit. Kenneth Helrich
205 _a15th ed
210 _aArlington
_c1990
_dAssociation of Official Analytical Chemists - AOAC
215 _a2 vol.
_cil.
_d29 cm
310 _aencadernado
317 _aIPIMAR
686 _aE 47
702 _aHelrich,
_bKenneth
_4340
710 _aAssociation of Official Analytical Chemists