APA (7th ed.) Citation

Friedl, J. E. F. (2006). Mastering regular expressions (3rd ed.). O'Reilly.

Chicago Style (17th ed.) Citation

Friedl, Jeffrey E. F. Mastering Regular Expressions. 3rd ed. Sebastapol, Calif.: O'Reilly, 2006.

MLA (8th ed.) Citation

Friedl, Jeffrey E. F. Mastering Regular Expressions. 3rd ed. O'Reilly, 2006.

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