00295nam a22001217a 4500 545 YAR Yaroslavtsev,A.A Problems and exercises in alnalytical chemistry Mir Moscow 1979 251p chemistry analytical chemistry REF 387 387 0 0 0 NFIC IC IC GEN 2015-03-07 0 545 YAR 000414 2015-03-07 00:00:00 2015-03-07 REF