International Conference on Diffuse (Nonpoint) Pollution: Sources, Prevention, Impact, Abatement Chicago, Illinois), Internqations Association on Water Quality, & Olem, H. (1993). Diffuse pollution: Proceedings of the IAWQ 1st International Conference on Diffuse (Nonpoint) Pollution: Sources, Prevention, Impact, Abatement, held in Chicago, Illinois, 19-24 September 1993. Pergamon Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)International Conference on Diffuse (Nonpoint) Pollution: Sources, Prevention, Impact, Abatement Chicago, Illinois), Internqations Association on Water Quality, και Harvey Olem. Diffuse Pollution: Proceedings of the IAWQ 1st International Conference on Diffuse (Nonpoint) Pollution: Sources, Prevention, Impact, Abatement, Held in Chicago, Illinois, 19-24 September 1993. Oxford: Pergamon Press, 1993.
Παραπομπή σε μορφή MLA (9th εκδ.)International Conference on Diffuse (Nonpoint) Pollution: Sources, Prevention, Impact, Abatement Chicago, Illinois), et al. Diffuse Pollution: Proceedings of the IAWQ 1st International Conference on Diffuse (Nonpoint) Pollution: Sources, Prevention, Impact, Abatement, Held in Chicago, Illinois, 19-24 September 1993. Pergamon Press, 1993.