APA (7th ed.) Citation

SUMMERS, W., Naimah Mohd. Hussin, & Zaidah Ibrahim. (1992). Computer viruses (2nd.ed.). Federal.

Chicago Style (17th ed.) Citation

SUMMERS, Wayne, Naimah Mohd. Hussin, and Zaidah Ibrahim. Computer Viruses. 2nd.ed. KL: Federal, 1992.

MLA (8th ed.) Citation

SUMMERS, Wayne, et al. Computer Viruses. 2nd.ed. Federal, 1992.