Compte-rendu de la 1ère session de travail sur la conservation et la gestion des forêts afro-montagnardes, 19-23 juin, 1989, Cyangugu, Rwanda
1989
Mountains
Tourism and the environment : regional, economic and policy issues
1992
Briassoulis, Helen |
Straaten, Jan van der |
Münchner Alpenschutzkonferenz der Friedrich-Ebert-Stiftung
1987
Nahe-Mann, Brigitte |
Managing mountain watersheds : the Upper Pokhara Valley, Nepal
1990
Thapa, Gopal B. |
Weber, Karl E. |
Integrated mountain development
1985
Singh, Tej Vir |
Kaur, Jagdish |
La Montagna italiana : problemi e prospettive
1967
Pizzigallo, Vitantonio |