TY - BOOK ED - Institut royal colonial belge TI - Biographie coloniale belge - Belgische koloniale biographie T2 - International Hydrological Decade 1965-1974 - Expert Meeting on the co-operative role of hydrogeology and geophysics in ground water exploration - Budapest 1969 PY - 1958/// CY - Bruxelles PB - Duculot KW - Conferences - Meetings ER -