APA (7th ed.) Citation

Summers, W., Naimah Mohd Hussin, & Zaidah Ibrahim. (1993). Computer viruses (2nd ed.). Federal Publications.

Chicago Style (17th ed.) Citation

Summers, Wayne, Naimah Mohd Hussin, and Zaidah Ibrahim. Computer Viruses. 2nd ed. Kuala Lumpur: Federal Publications, 1993.

MLA (9th ed.) Citation

Summers, Wayne, et al. Computer Viruses. 2nd ed. Federal Publications, 1993.