APA (7th ed.) Citation

Kristof, R. (2000). E-mail virus. Protection handbook ([1st ed.].). Syngress.

Chicago Style (17th ed.) Citation

Kristof, Richard. E-mail Virus. Protection Handbook. [1st ed.]. Rockland: Syngress, 2000.

MLA (9th ed.) Citation

Kristof, Richard. E-mail Virus. Protection Handbook. [1st ed.]. Syngress, 2000.