Cita APA (7a ed.)

Safari Tech Books Onli, Safari Tech Books Online, Geschwinde, E. A., & Schoenig, H. C. (2002). PHP and PostgreSQL Advanced Web Programming (1st edition.). Sams.

Cita Chicago Style (17a ed.)

Safari Tech Books Onli, Safari Tech Books Online, Ewald Author Geschwinde, y Hans-Juergen Contributor Schoenig. PHP and PostgreSQL Advanced Web Programming. 1st edition. [Place of publication not identified]: Sams, 2002.

Cita MLA (9a ed.)

Safari Tech Books Onli, et al. PHP and PostgreSQL Advanced Web Programming. 1st edition. Sams, 2002.