APA-viite (7. p.)
Van Dijk, J. (1995). Taking the waters: Soil and water conservation among settling Beja nomads in Eastern Sudan. ASC.
Chicago-viite (17. p.)
Van Dijk, Johan. Taking the Waters: Soil and Water Conservation Among Settling Beja Nomads in Eastern Sudan. Leiden: ASC, 1995.
MLA-viite (9. p.)
Van Dijk, Johan. Taking the Waters: Soil and Water Conservation Among Settling Beja Nomads in Eastern Sudan. ASC, 1995.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.