000 00256nam a22001097a 4500
020 _a126397503
082 _a541.35
_bSHE/QUA
100 _aE J SHELLARD
245 _aQUANTITATIVE PAPER AND THIN - LAYER CHROMATOGRAPHY
260 _bAP
_c1968
942 _2ddc
_cBK
999 _c1638
_d1638