Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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