Sobell, M. G. (1995). A practical guide to the UNIX system (3rd ed.). Addison-Wesley.
Chicago Style aipamenaSobell, Mark G. A Practical Guide to the UNIX System. 3rd ed. Reading, MA: Addison-Wesley, 1995.
MLA aipamenaSobell, Mark G. A Practical Guide to the UNIX System. 3rd ed. Addison-Wesley, 1995.
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