APA (7th ed.) Citation
Todino, G., & Strang, J. (1989). Learning the UNIX operating system. O'Reilly and associates.
Chicago Style (17th ed.) Citation
Todino, Grace, and John Strang. Learning the UNIX Operating System. Sebastopol, CA: O'Reilly and associates, 1989.
MLA (9th ed.) Citation
Todino, Grace, and John Strang. Learning the UNIX Operating System. O'Reilly and associates, 1989.
Warning: These citations may not always be 100% accurate.