Gaya APA

Douglas, K., Douglas, S. (2003). PostgreSQL : a comprehensive guide to building, programming, and administering PostgreSQL databases (1st ed.). Indinapolis: Sams.

Gaya MLA

Douglas, Korry., Douglas, Susan. "PostgreSQL : a comprehensive guide to building, programming, and administering PostgreSQL databases". 1st ed. Indinapolis: Sams, 2003. Text.