APA (7th ed.) Citation

Zarrella, J. (1979). Operating systems: Concepts and principles. Microcomputer Applications.

Chicago Style (17th ed.) Citation

Zarrella, John. Operating Systems: Concepts and Principles. Suisun City, Calif: Microcomputer Applications, 1979.

MLA (9th ed.) Citation

Zarrella, John. Operating Systems: Concepts and Principles. Microcomputer Applications, 1979.

Warning: These citations may not always be 100% accurate.