Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Friedl, Jeffrey E. F. Mastering Regular Expressions. 3rd ed. Beijing [etc.]: O'Reilly, 2006.

Cita MLA (9a ed.)

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