Van Dijk, J. (1995). Taking the waters: Soil and water conservation among settling Beja nomads in Eastern Sudan. ASC.
Čikaški stil citiranja (17. izdanje)Van Dijk, Johan. Taking the Waters: Soil and Water Conservation Among Settling Beja Nomads in Eastern Sudan. Leiden: ASC, 1995.
MLA način citiranja (9. izdanje)Van Dijk, Johan. Taking the Waters: Soil and Water Conservation Among Settling Beja Nomads in Eastern Sudan. ASC, 1995.
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