APA (7th ed.) Citation

Sofer, G. K., & Nystrom, L. (1991). Process chromatography: A guide to validation. Academic Press.

Chicago Style (17th ed.) Citation

Sofer, G. K., and Lars-Erik Nystrom. Process Chromatography: A Guide to Validation. London ; San Diego: Academic Press, 1991.

MLA (9th ed.) Citation

Sofer, G. K., and Lars-Erik Nystrom. Process Chromatography: A Guide to Validation. Academic Press, 1991.