Treatment and use of sewage effluent for irrigation : proceedings of the FAO Regional Seminar on the Treatment and Use of Sewage Effluent for Irrigation held in Nicosia, Cyprus, 7-9 October 1985 / edited by M.B. Pescod and A. Arar. - Pescod, M. B.; Arar, Abdullah (Published by arrangement with the Food and Agricultural Organization of the United Nations by Butterworths, 1988)