Groff, J. R. (1983). Understanding UNIX A conceptual guide. Indianapolis: Que Corporation.
Chicago Style CitationGroff, James R. Understanding UNIX A Conceptual Guide. Indianapolis: Que Corporation, 1983.
MLA CitationGroff, James R. Understanding UNIX A Conceptual Guide. Indianapolis: Que Corporation, 1983.
Warning: These citations may not always be 100% accurate.