Cita APA (7a ed.)
Kent, A., Slenc, M., & Sweat, J. E. PHP Graphics Handbook. Wrox.
Cita estilo Chicago (17a ed.)
Kent, Allan, Mitja Slenc, y Jason E. Sweat. PHP Graphics Handbook. Birmingham, Inglaterra: Wrox.
Cita MLA (9a ed.)
Kent, Allan, et al. PHP Graphics Handbook. Wrox.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.