APA (7th ed.) Citation

Burger, R. (1991). Computer viruses and data protection. Abacus.

Chicago Style (17th ed.) Citation

Burger, Ralf. Computer Viruses and Data Protection. Grand Rapids, Mich: Abacus, 1991.

MLA (9th ed.) Citation

Burger, Ralf. Computer Viruses and Data Protection. Abacus, 1991.