ScienceDirect (Online service), Grossman, M. I., Brazier, M. A. B., & Lechago, J. (1981). Cellular basis of chemical messengers in the digestive system. Academic Press.
Chicago Style (17th ed.) CitationScienceDirect (Online service), Morton I. Grossman, Mary A. B. Brazier, and Juan Lechago. Cellular Basis of Chemical Messengers in the Digestive System. New York: Academic Press, 1981.
MLA (9th ed.) CitationScienceDirect (Online service), et al. Cellular Basis of Chemical Messengers in the Digestive System. Academic Press, 1981.
Warning: These citations may not always be 100% accurate.