APA (7th ed.) Citation

Flynn, I. M., & McHoes, A. M. (1997). Understanding operating systems (2nd ed.). PWS Publishing.

Chicago Style (17th ed.) Citation

Flynn, Ida M., and Ann McIver McHoes. Understanding Operating Systems. 2nd ed. Boston: PWS Publishing, 1997.

MLA (9th ed.) Citation

Flynn, Ida M., and Ann McIver McHoes. Understanding Operating Systems. 2nd ed. PWS Publishing, 1997.