APA (7th ed.) Citation

Zend Technologies Content Provider, Technologies, Z., & Herbert, S. C. (2005). Zend PHP certification study guide (1st edition.). Sams Pub.

Chicago Style (17th ed.) Citation

Zend Technologies Content Provider, Zend Technologies, and Stuart Contributor Herbert. Zend PHP Certification Study Guide. 1st edition. [Place of publication not identified]: Sams Pub, 2005.

MLA (9th ed.) Citation

Zend Technologies Content Provider, et al. Zend PHP Certification Study Guide. 1st edition. Sams Pub, 2005.