APA aipamena

Kernighan, B. W., & Pike, R. (1991). The UNIX programming environment.

Chicago Style aipamena

Kernighan, Brian W., and Rob Pike. The UNIX Programming Environment. New Delhi, Prentice-Hall of India, 1991.

MLA aipamena

Kernighan, Brian W., and Rob Pike. The UNIX Programming Environment. 1991.