Snell, C. A., Snell, C. T., & Snell, F. D. (1969). Colorimetric methods of analysis including photometric methods.
Chicago Edition CitationSnell, Chester Arthur, Cornelia T. Snell, and Foster Dee Snell. Colorimetric Methods of Analysis Including Photometric Methods. New York, Van Nostrand Reinhold, 1969.
MLA Edition CitationSnell, Chester Arthur, et al. Colorimetric Methods of Analysis Including Photometric Methods. 1969.
Warning: These citations may not always be 100% accurate.