Samalin, Samuel Secure UNIX/ Samuel Samalin. - New York: McGraw-Hill, c1997. - xiv, 202 p.: ill.; 23 cm. Includes index. ISBN: 0070545545 (pbk.) LCCN: 96035315 //r97 Nat. Bib. No.: GB97-24695 Subjects--Uniform Titles: UNIX (Computer file)UNIX (Computer file) Subjects--Topical Terms: Computer security. Dewey Class. No.: 005.8 / S187s