APA (7th ed.) Citation

Bernstein, P. A., & Tsichritzis, D. C. (1974). Operating systems. Academic Press.

Chicago Style (17th ed.) Citation

Bernstein, Philip A., and Dionysios C. Tsichritzis. Operating Systems. New York: Academic Press, 1974.

MLA (8th ed.) Citation

Bernstein, Philip A., and Dionysios C. Tsichritzis. Operating Systems. Academic Press, 1974.