|  |
Final report | Bok | 556(23)(061.3) E
European Forestry Comission Working Party on the Management Watersheds (10 : 1972 : Oslo) / - Roma : Food and Agriculture Organization of the United Nations, 1973. - V, 43, [3] s. - Sp | European Forestry Comission Working Party on the Management Watersheds | 1973 |