APA (7th ed.) Citation

Hoare, C., McKeag, R., & Broy, M. (1982). Structure of an Operating System.

Chicago Style (17th ed.) Citation

Hoare, C., R. McKeag, and M. Broy. Structure of an Operating System. 1982.

MLA (9th ed.) Citation

Hoare, C., et al. Structure of an Operating System. 1982.