TY  - BOOK
AU  - Boltz, David Ferdinand,
TI  - Colorimetric determination of nonmetals: Sarah black, david f. boltz, w. j. holland..
T2  - Chemical analysis
AV  - QD113 B6
PY  - 1958///
CY  - New York
PB  - Interscience Publishers.
KW  - Colorimetría
ER  -