Παραπομπή σε μορφή APA (7η εκδ.)

Van Dijk, J. (1995). Taking the waters: Soil and water conservation among settling Beja nomads in Eastern Sudan. ASC.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Van Dijk, Johan. Taking the Waters: Soil and Water Conservation Among Settling Beja Nomads in Eastern Sudan. Leiden: ASC, 1995.

Παραπομπή σε μορφή MLA (9th εκδ.)

Van Dijk, Johan. Taking the Waters: Soil and Water Conservation Among Settling Beja Nomads in Eastern Sudan. ASC, 1995.