000
00292 a2200109 4500
008
180630b xxu||||| |||| 00|
100
_a
Snell,F.D
245
_a
colorimetric methods of analysis
_c
Snell,F.D
260
_a
new york
_b
D. VAN NOSTRAND COMPANY, INC
_c
1954
300
_a
637,P
942
_2
ddc
_c
BK
999
_c
6403
_d
6403