Cita APA (7a ed.)

Safari Tech Books Online, Sklar, D. A., & Trachtenberg, A. C. (2003). PHP cookbook. O'Reilly.

Cita Chicago Style (17a ed.)

Safari Tech Books Online, David Author Sklar, y Adam Contributor Trachtenberg. PHP Cookbook. [Place of publication not identified]: O'Reilly, 2003.

Cita MLA (9a ed.)

Safari Tech Books Online, et al. PHP Cookbook. O'Reilly, 2003.