Cita APA (7a ed.)

Safari Tech Books Online, Douglas, K. A., & Douglas, S. (2005). PostgreSQL: A comprehensive guide to building, programming and administering PstgreSQL databases (2nd ed.). Sams.

Cita Chicago Style (17a ed.)

Safari Tech Books Online, Korry Author Douglas, y Susan Douglas. PostgreSQL: A Comprehensive Guide to Building, Programming and Administering PstgreSQL Databases. 2nd ed. [Place of publication not identified]: Sams, 2005.

Cita MLA (9a ed.)

Safari Tech Books Online, et al. PostgreSQL: A Comprehensive Guide to Building, Programming and Administering PstgreSQL Databases. 2nd ed. Sams, 2005.