Advanced wastewater treatment and reclamation : proceedings of the IAWPRC conference held in Cracow, Poland, 25-27 September, 1989 / editor, J. Kurbiel
"The 1989 International Conference on Advanced Wastewater Treatment and Reclamation is the fifth in a series and the first held under the auspices of the International Association on Water Pollution Research and Control (IAWPRC)" ... preface