APA
George K. Hirst, . (12001). Virology. New York: Academic Press.
Chicago
George K. Hirst, . 12001. Virology. New York: Academic Press.
Harvard
George K. Hirst, . (12001). Virology. New York: Academic Press.
MLA
George K. Hirst, . Virology. New York: Academic Press. 12001.