APA (7th ed.) Citation

Steinmetz, W., & Ward, B. (2008). Wicked Cool PHP (1st edition.). No Starch Press.

Chicago Style (17th ed.) Citation

Steinmetz, William, and Brian Ward. Wicked Cool PHP. 1st edition. No Starch Press, 2008.

MLA (9th ed.) Citation

Steinmetz, William, and Brian Ward. Wicked Cool PHP. 1st edition. No Starch Press, 2008.

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