000 00285nam a2200121Ia 4500
008 170324s9999 xx 000 0 und d
082 _a543.089
100 _a"Touchstone, Joseph C."
245 0 _aPractice of thin layer chromatography
260 _c1900
365 _b0.00
942 _cBK
999 _c4752
_d4752