Παραπομπή σε μορφή APA (7η εκδ.)

National Planning Institute. (2007). development of cross border trade among Nile basin countries: Ascoping study. National Planning Institute.

Παραπομπή σε μορφή Chicago (17η εκδ.)

National Planning Institute. Development of Cross Border Trade Among Nile Basin Countries: Ascoping Study. cairo.: National Planning Institute, 2007.

Παραπομπή σε μορφή MLA (9th εκδ.)

National Planning Institute. Development of Cross Border Trade Among Nile Basin Countries: Ascoping Study. National Planning Institute, 2007.