Block, R. J., Durrum, E. L., Zweig, G., LeStrange, R., Wingerd, W. H., & Weiss, K. W. (1958). A manual of paper chromatography and paper electrophoresis (2nd ed., revised and enlarged.). New York: Academic Press.

Block, R. J., Emmet L. Durrum, Gunter Zweig, Raymond LeStrange, Winston H. Wingerd, and Kathryn W. Weiss. A Manual of Paper Chromatography and Paper Electrophoresis. 2nd ed., revised and enlarged. New York: Academic Press, 1958.

Block, R. J., et al. A Manual of Paper Chromatography and Paper Electrophoresis. 2nd ed., revised and enlarged. New York: Academic Press, 1958.