APA (7th ed.) Citation

Schwartz, R. L., Foy, B. D., & Phoenix, T. (2021). Learning Perl: Making easy things easy and hard things possible (Eighth 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. Eighth edition. Sebastopol, CA: O'Reilly, 2021.

MLA (9th ed.) Citation

Schwartz, Randal L., et al. Learning Perl: Making Easy Things Easy and Hard Things Possible. Eighth edition. O'Reilly, 2021.