Külls, C. (2000). Groundwater of the North-Western Kalahari, Namibia: Estimation of recharge and quantification of the flow systems = Das Grundwasser am Nord-Westrand der Kalahari, Namibia.
Chicago-Zitierstil (17. Ausg.)Külls, Christoph. Groundwater of the North-Western Kalahari, Namibia: Estimation of Recharge and Quantification of the Flow Systems = Das Grundwasser Am Nord-Westrand Der Kalahari, Namibia. 2000.
MLA-Zitierstil (9. Ausg.)Külls, Christoph. Groundwater of the North-Western Kalahari, Namibia: Estimation of Recharge and Quantification of the Flow Systems = Das Grundwasser Am Nord-Westrand Der Kalahari, Namibia. 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.