APA (7e ed.) Bronvermelding

Coggeshall, J., & Tabini, M. (2005). The Zend PHP certification practice test book: Practice questions for the zend certified engineer exam. Marco Tabini & Assoc..

Chicago (17e ed.) Bronvermelding

Coggeshall, John, en Marco Tabini. The Zend PHP Certification Practice Test Book: Practice Questions for the Zend Certified Engineer Exam. Toronto, Ont.: Marco Tabini & Assoc., 2005.

MLA (8e ed.) Bronvermelding

Coggeshall, John, en Marco Tabini. The Zend PHP Certification Practice Test Book: Practice Questions for the Zend Certified Engineer Exam. Marco Tabini & Assoc., 2005.