ScienceDirect (Online service) & Boyer, P. D. (1971). The enzymes (3rd ed.). Academic Press.
Chicago Style (17th ed.) CitationScienceDirect (Online service) and Paul D. Boyer. The Enzymes. 3rd ed. New York: Academic Press, 1971.
MLA (9th ed.) CitationScienceDirect (Online service) and Paul D. Boyer. The Enzymes. 3rd ed. Academic Press, 1971.
Warning: These citations may not always be 100% accurate.