Παραπομπή σε μορφή APA (7η εκδ.)

Ormsby, T., & Alvi, J. (1999). Extending ArcView GIS: Teach yourself to use ArcView GIS extensions. Environmental Systems Research Institute.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ormsby, Tim, και Jonell Alvi. Extending ArcView GIS: Teach Yourself to Use ArcView GIS Extensions. Redlands, California: Environmental Systems Research Institute, 1999.

Παραπομπή σε μορφή MLA (8th εκδ.)

Ormsby, Tim, και Jonell Alvi. Extending ArcView GIS: Teach Yourself to Use ArcView GIS Extensions. Environmental Systems Research Institute, 1999.