APA (7th ed.) Citation

(1984). A practical guide to the UNIX system / Mark G. Sobell.

Chicago Style (17th ed.) Citation

A Practical Guide to the UNIX System / Mark G. Sobell. 1984.

MLA (9th ed.) Citation

A Practical Guide to the UNIX System / Mark G. Sobell. 1984.

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