Παραπομπή σε μορφή APA (7η εκδ.)

Clarke, K. C. (2003). Getting started with geographic information systems (4th ed.). Pearson Education.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Clarke, Keith C. Getting Started with Geographic Information Systems. 4th ed. Upper Saddle River, N.J: Pearson Education, 2003.

Παραπομπή σε μορφή MLA (9th εκδ.)

Clarke, Keith C. Getting Started with Geographic Information Systems. 4th ed. Pearson Education, 2003.