GROFF JAMES R. (1983). UNDERSTANDING UNIX A CONCEPTUAL GUIDE. QUE CORPORATION.
Chicago-čujuhus (17. p.)GROFF JAMES R. UNDERSTANDING UNIX A CONCEPTUAL GUIDE. INDIANA: QUE CORPORATION, 1983.
MLA-čujuhus (9. p.)GROFF JAMES R. UNDERSTANDING UNIX A CONCEPTUAL GUIDE. QUE CORPORATION, 1983.
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