Cita APA (7th ed.)

Shafik,Davey, & Ramsey,Ben. (2007). PHP/architect's Zend PHP 5 certification study guide (2nd ed.). Marco Tabini.

Cita Chicago (17th ed.)

Shafik,Davey, i Ramsey,Ben. PHP/architect's Zend PHP 5 Certification Study Guide. 2nd ed. Toronto: Marco Tabini, 2007.

Cita MLA (8th ed.)

Shafik,Davey, i Ramsey,Ben. PHP/architect's Zend PHP 5 Certification Study Guide. 2nd ed. Marco Tabini, 2007.