"UNIX (system operacyjny) poradniki." . . "UNIX (Computer file)" . . "UNIX (system operacyjny)." . . "UNIX (Computer operating system)" . . . . "UNIX." . . "Systemy operacyjne (informatyka)." . . . . . "UNIX-the complete book a guide for the professional user"@en . . . . . . . "Handbooks and manuals"@en . . . "UNIX-the complete book : a guide for the professional user"@en . "UNIX - the complete book : a guide for the professional user" . "UNIX-the complete book : a guide for the professional user" . . . . . . . . . "UNIX" . .