International Symposium on Contaminant Transport in Groundwater : Stuttgart, Kobus, H. E., & Kinzelbach, W. (1989). Contaminant transport in groundwater: Proceedings of the International Symposium on Contaminant Transport in Groundwater / Stuttgart / 4-6 April 1989. A. A. Balkema.
Παραπομπή σε μορφή Chicago (17η εκδ.)International Symposium on Contaminant Transport in Groundwater : Stuttgart, H. E. Kobus, και Wolfgang Kinzelbach. Contaminant Transport in Groundwater: Proceedings of the International Symposium on Contaminant Transport in Groundwater / Stuttgart / 4-6 April 1989. Rotterdam; Brookfield: A. A. Balkema, 1989.
Παραπομπή σε μορφή MLA (9th εκδ.)International Symposium on Contaminant Transport in Groundwater : Stuttgart, et al. Contaminant Transport in Groundwater: Proceedings of the International Symposium on Contaminant Transport in Groundwater / Stuttgart / 4-6 April 1989. A. A. Balkema, 1989.