APA (7th ed.) Citation

Choi, W., Kent, A., & Lea Chris. (2000). Beginning PHP4. Wrox press ltd.

Chicago Style (17th ed.) Citation

Choi, Wankyu, Allan Kent, and Lea Chris. Beginning PHP4. UK: Wrox press ltd, 2000.

MLA (9th ed.) Citation

Choi, Wankyu, et al. Beginning PHP4. Wrox press ltd, 2000.