Choi, W., Kent, A., & Lea Chris. (2000). Beginning PHP4. Wrox press ltd.
Cita Chicago (17th ed.)Choi, Wankyu, Allan Kent, i Lea Chris. Beginning PHP4. UK: Wrox press ltd, 2000.
Cita MLA (9th ed.)Choi, Wankyu, et al. Beginning PHP4. Wrox press ltd, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.