TY  - BOOK
AU  - Snell, Foster Dee.
AU  - Snell, Cornelia T.
TI  - Colorimetric methods of analysis: including photometric methods 
PY  - 1970///
CY  - New York
PB  - Van Nostrand Reinhold
KW  - Cororimetric analysis
KW  - Chemistry, Analytic
KW  - Colorimetry
KW  - Photometry
N1  - Volume IVAA
ER  -