sponsored by the Department of Hydrology and Water Resources, College of Engineering and Mines, University of Arizona [and] the Mexican Institute for Water Technology, Cuernavaca, Mexico [and] Waterloo Centre for Groundwater Research, University of Waterloo, Waterloo, Ont., Canada ; edited by Nathan BuraAmerican Society of Civil Engineers1995
edited by E. Plate, N. Buras ; ... organised by the IAHS International Commission on Water Resources Systems and cosponsored by UNESCOInternational Association of Hydrological Sciences1985