Sobell, Mark G. A practical guide to the UNIX system Mark G. Sobell - Menlo Park, Calif Benjamin/Cummings Pub. Co. c1984 - xx, 428 p. ill 24 cm. - The Benjamin/Cummings series in computing and information sciences . Subjects--Topical Terms: UNIX (Computer operating system) Dewey Class. No.: 001.64 / 2