APA (7th ed.) Citation

Block, R. J., Durrum, E. L. ‎., & Zweig, G. (1955). A manual of paper chromatography and paper electrophoresis. Academic Press.

Chicago Style (17th ed.) Citation

Block, Richard Joseph, Emmett L. ‎ Durrum, and Gunter Zweig. A Manual of Paper Chromatography and Paper Electrophoresis. New York: Academic Press, 1955.

MLA (8th ed.) Citation

Block, Richard Joseph, et al. A Manual of Paper Chromatography and Paper Electrophoresis. Academic Press, 1955.