APA (7th ed.) Citation

ScienceDirect (Online service), Granoff, A., & Webster, R. G. (1999). Encyclopedia of virology (2nd ed.). Academic Press.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), Allan Granoff, and Robert G. Webster. Encyclopedia of Virology. 2nd ed. San Diego: Academic Press, 1999.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Encyclopedia of Virology. 2nd ed. Academic Press, 1999.