APA (7th ed.) Citation

Patwardhan, N., & Irving, C. (1997). Programming with Perl modules (1st ed., UNIX ed.). O'Reilly.

Chicago Style (17th ed.) Citation

Patwardhan, Nathan, and Clay Irving. Programming with Perl Modules. 1st ed., UNIX ed. Cambridge [etc.]: O'Reilly, 1997.

MLA (9th ed.) Citation

Patwardhan, Nathan, and Clay Irving. Programming with Perl Modules. 1st ed., UNIX ed. O'Reilly, 1997.