APA (7th ed.) Citation
Christian, K. (1988). The UNIX Operating System (2.Edition.). John Wiley & Sons.
Chicago Style (17th ed.) Citation
Christian, Kaare. The UNIX Operating System. 2.Edition. New York: John Wiley & Sons, 1988.
MLA (9th ed.) Citation
Christian, Kaare. The UNIX Operating System. 2.Edition. John Wiley & Sons, 1988.
Warning: These citations may not always be 100% accurate.