TY - BOOK ED - Unesco TI - Status and trends of research in hydrology 1965-74.= Bilan et tendances de la recherche en hydrologie 1965-74.: a contribution to the International Hydrological Decade. Une contribution �a la D�ecennie hydrologique internationale PY - 1972/// CY - Paris PB - Unesco KW - Hydrology KW - Research KW - International Hydrological Decade, 1965-1974 N1 - English or French ER -