APA-referens (7:e uppl.)

Friedl, J. E. F. (2006). Mastering regular expressions (Third edition.). O'Reilly.

Chicago-referens (17:e uppl.)

Friedl, Jeffrey E. F. Mastering Regular Expressions. Third edition. Sebastapol, CA: O'Reilly, 2006.

MLA-referens (9:e uppl.)

Friedl, Jeffrey E. F. Mastering Regular Expressions. Third edition. O'Reilly, 2006.