APA (7th ed.) Citation

ScienceDirect (Online service), Norris, J. R., & Ribbons, D. W. (1969). Methods in microbiology. Academic Press.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), John Robert Norris, and Douglas W. Ribbons. Methods in Microbiology. London ; New York: Academic Press, 1969.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Methods in Microbiology. Academic Press, 1969.