APA (7th ed.) Citation

Schwartz, R. L., Foy, B. D., & Phoenix, T. (2016). Learning Perl: Making easy things easy and hard things possible (Seventh edition.). O'Reilly.

Chicago Style (17th ed.) Citation

Schwartz, Randal L., Brian D. Foy, and Tom Phoenix. Learning Perl: Making Easy Things Easy and Hard Things Possible. Seventh edition. Beijing ; Boston ; Farnham ; Sebastopol ; Tokyo: O'Reilly, 2016.

MLA (9th ed.) Citation

Schwartz, Randal L., et al. Learning Perl: Making Easy Things Easy and Hard Things Possible. Seventh edition. O'Reilly, 2016.