APA Edition Citation

Snell, C. I., & Snell, F. D. (1970). Colorimetric methods of analysis: Including photometric methods.

Chicago Edition Citation

Snell, Cornelia I., and Foster Dee Snell. Colorimetric Methods of Analysis: Including Photometric Methods. New York, Van Nostrand Reinhold, 1970.

MLA Edition Citation

Snell, Cornelia I., and Foster Dee Snell. Colorimetric Methods of Analysis: Including Photometric Methods. 1970.