APA (7th ed.) Citation

Lerdorf, R., Tatroe, K., & MacIntyre, P. (2006). Programming PHP / Rasmus Lerdorf, Kevin Tatroe, and Peter MacIntyre (2nd ed.). O'Reilly.

Chicago Style (17th ed.) Citation

Lerdorf, Rasmus, Kevin Tatroe, and Peter MacIntyre. Programming PHP / Rasmus Lerdorf, Kevin Tatroe, and Peter MacIntyre. 2nd ed. Sebastopol, Calif.: O'Reilly, 2006.

MLA (9th ed.) Citation

Lerdorf, Rasmus, et al. Programming PHP / Rasmus Lerdorf, Kevin Tatroe, and Peter MacIntyre. 2nd ed. O'Reilly, 2006.

Warning: These citations may not always be 100% accurate.