TY  - GEN
AU  - Snell, Cornelia T
AU  - Snell, Foster dee
TI  - Colorimetric methods of  analysis including some turbidimetric and nephelometric methods V.4
U1  - 543.0852 SNE 
CY  - London, D  Van  Nostrand Company INC
KW  - Analytical Chemistry/ Antibiotics/ Hormones/ Optical method/ Photometric analysis
ER  -