Cita APA

Lerdorf, R. (2002). Programming PHP. O'Reilly.

Chicago Style Citation

Lerdorf, Rasmus. Programming PHP. O'Reilly, 2002.

Cita MLA

Lerdorf, Rasmus. Programming PHP. O'Reilly, 2002.

Atenció: Aquestes cites poden no estar 100% correctes.