APA (7th ed.) Citation

Todino, G., & Strang, J. (1989). Learning the UNIX operating system (2. ed., minor rev.). O'Reilly.

Chicago Style (17th ed.) Citation

Todino, Grace, and John Strang. Learning the UNIX Operating System. 2. ed., minor rev. Sebastopol, Calif: O'Reilly, 1989.

MLA (9th ed.) Citation

Todino, Grace, and John Strang. Learning the UNIX Operating System. 2. ed., minor rev. O'Reilly, 1989.