APA (7th ed.) Citation

Foy, B. D., Schwartz, R. L., & Phoenix, T. (2006). Intermediate Perl. O'Reilly.

Chicago Style (17th ed.) Citation

Foy, Brian D., Randal L. Schwartz, and Tom Phoenix. Intermediate Perl. Sebastopol, Calif.: O'Reilly, 2006.

MLA (8th ed.) Citation

Foy, Brian D., et al. Intermediate Perl. O'Reilly, 2006.

Warning: These citations may not always be 100% accurate.