Christian, K. (1988). The UNIX command reference guide. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)Christian, Kaare. The UNIX Command Reference Guide. New York: John Wiley & Sons, 1988.
Lua MLA (9ú heag.)Christian, Kaare. The UNIX Command Reference Guide. John Wiley & Sons, 1988.
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