13th (Extraordinary) General Assembly
Subtitle: Geneva, Switzerland, 19-21 April, 1977 : proceedings.
Publisher: International Union for Conservation of Nature and Natural Resources
Published: 1977
Place of publication: Morges, Switzerland
Language: eng
Subjects: International Union for Conservation of Nature and Natural Resources -- Congresses.; Conservation of natural resources -- International cooperation -- Congresses.; Nature conservation -- International cooperation -- Congresses.
Other titles: Thirteenth (Extraordinary) General Assembly.