Cita APA (7a ed.)

Schwartz, R. L., & Christiansen, T. (1997). Learning Perl (2nd ed.). O'Reilly & Associates.

Cita Chicago Style (17a ed.)

Schwartz, Randal L., y Tom Christiansen. Learning Perl. 2nd ed. Sebastopol, CA: O'Reilly & Associates, 1997.

Cita MLA (8a ed.)

Schwartz, Randal L., y Tom Christiansen. Learning Perl. 2nd ed. O'Reilly & Associates, 1997.