Scientific and technical water-related documentary information in the UNESCO International Hydrological Programme Paul Nieuwenhuysen ... [et al.] - Paris Unesco 1989 - 51 Páginas 30 cm "UNESCO-IHP Phase III, Project 17.1"Documento SC-89/WS-49 Inglés Subjects--Topical Terms: HIDROLOGÍASISTEMAS DE INFORMACIONBASES DE DATOS Dewey Class. No.: SENFOL0830