Skoog, D. A., West, D. M., & Holler, F. J. (2000). Analytical chemistry: An introduction (7th ed.). Saunders College Publishing.

Skoog, Douglas A., Donald M. West, and F. James Holler. Analytical Chemistry: An Introduction. 7th ed. Fort Worth: Saunders College Publishing, 2000.

Skoog, Douglas A., et al. Analytical Chemistry: An Introduction. 7th ed. Saunders College Publishing, 2000.