9th general assembly: International union for conservation of nature and natural resources , Switzerland, 25 June 2 July 1966
9th general assembly: International union for conservation of nature and natural resources , Switzerland, 25 June 2 July 1966
/ Suisse
- Switzerland: Suisse, 1967
- 209p.
- IUCN Publications new series .
Science
Natural resource
339.5(05)
Science
Natural resource
339.5(05)