Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Tsichritzis, Dionysios C., y Philip A. Bernstein. Operating Systems. Orlando [etc.]: Academic Press, 1974.

Cita MLA (9a ed.)

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