Kernighan, Brian W. The UNIX programming environment / Brian W. Kernighan and Rob Pike - New Delhi : Prentice-Hall of India, c1994. - x, 357 p. : 23 cm. ISBN: 8120304993 LCCN: Subjects--Topical Terms: Programming languagesUnixComputer science LC Class. No.: QA76.6 / .K495 1994