Thirteenth (extraordinary) General Assembly, Geneva, Switzerland, 19-21 April 1977 : proceedings 1977
IUCN yearbook, 1975-76 : annual report of the International Union for Conservation of Nature and Natural Resources for 1975 and for January-May 1976 1976
Meeting on the reintroduction of the bearded vulture, Gypaetus barbatus aureus (Hablizl 1788), into the Alps, Morges 17-18 November 1978 : report of proceedings 1979
Establishment and management of protected areas in the Gobi region, Mongolian People's Republic : report of an international mission, May-June 1976 1976 Child, Graham | Hunkeler, P. |
Second World Conference on National Parks, Yellowstone and Grand Teton National Parks, USA, September 18-27, 1972 : proceedings 1974
Symposium international sur l'avenir des Alpes : conservation et développement d'un patrimoine européen, Trente, Italie, 31 août - 6 septembre 1974 1979
IUCN yearbook : annual report of the International Union for Conservation of Nature and Natural Resources for 1973 1974
IUCN yearbook : annual report of the International Union for Conservation of Nature and Natural Resources for 1972 1973
