APA (7th ed.) Citation

Schwartz, R. L., & Phoenix, T. (2001). Learning Perl (3rd ed.). O'Reilly.

Chicago Style (17th ed.) Citation

Schwartz, Randal L., and Tom Phoenix. Learning Perl. 3rd ed. Sebastopol, California: O'Reilly, 2001.

MLA (9th ed.) Citation

Schwartz, Randal L., and Tom Phoenix. Learning Perl. 3rd ed. O'Reilly, 2001.