Cita APA (7a ed.)

Safari Tech Books Online, Geschwinde, E. A., & Schöenig, H. C. (2001). PostgreSQL developer's handbook (1st edition.). Sams.

Cita Chicago Style (17a ed.)

Safari Tech Books Online, Ewald Author Geschwinde, y Hans-Jüergen Contributor Schöenig. PostgreSQL Developer's Handbook. 1st edition. [Place of publication not identified]: Sams, 2001.

Cita MLA (9a ed.)

Safari Tech Books Online, et al. PostgreSQL Developer's Handbook. 1st edition. Sams, 2001.