Παραπομπή σε μορφή APA (7η εκδ.)

Marquez, A. (2015). PostGIS essentials: Learn how to build powerful spatial database solutions with PostGIS quickly and efficiently. Packt Publishing.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Marquez, Angel. PostGIS Essentials: Learn How to Build Powerful Spatial Database Solutions with PostGIS Quickly and Efficiently. Birmingham: Packt Publishing, 2015.

Παραπομπή σε μορφή MLA (8th εκδ.)

Marquez, Angel. PostGIS Essentials: Learn How to Build Powerful Spatial Database Solutions with PostGIS Quickly and Efficiently. Packt Publishing, 2015.