000 00292 a2200109 4500
008 180630b xxu||||| |||| 00|
100 _aSnell,F.D
245 _acolorimetric methods of analysis
_cSnell,F.D
260 _anew york
_bD. VAN NOSTRAND COMPANY, INC
_c1954
300 _a637,P
942 _2ddc
_cBK
999 _c6403
_d6403