APA (7th ed.) Citation

Hill, M. J., & Marsh, P. (1990). Human microbial ecology. CRC Press.

Chicago Style (17th ed.) Citation

Hill, M. J., and Philip Marsh. Human Microbial Ecology. Boca Raton, Fla.: CRC Press, 1990.

MLA (9th ed.) Citation

Hill, M. J., and Philip Marsh. Human Microbial Ecology. CRC Press, 1990.