APA (7th ed.) Citation

Fitzgerald, M., St. Laurent, S., & Demarest, R. (2012). Introducing regular expressions (First edition.). O'Reilly.

Chicago Style (17th ed.) Citation

Fitzgerald, Michael, Simon St. Laurent, and Rebecca Demarest. Introducing Regular Expressions. First edition. Sebastopol, CA: O'Reilly, 2012.

MLA (9th ed.) Citation

Fitzgerald, Michael, et al. Introducing Regular Expressions. First edition. O'Reilly, 2012.