APA (7th ed.) Citation

Jackson, K. M., & Hruska, J. (1990). The PC security guide 1990/ 1991. Elsevier Advanced Technology.

Chicago Style (17th ed.) Citation

Jackson, K. M., and J. Hruska. The PC Security Guide 1990/ 1991. Oxford: Elsevier Advanced Technology, 1990.

MLA (9th ed.) Citation

Jackson, K. M., and J. Hruska. The PC Security Guide 1990/ 1991. Elsevier Advanced Technology, 1990.