Proceedings : International Conference on the Conservation of Wetlands and Waterfowl, Ramsar, Iran, 30 January - 3 February 1971
1972
Carp, Erik |
IUCN
Project aqua : a source book of inland waters proposed for conservation
1971
Luther, H. |
Rzóska, J. |
Worthington, E. B. |
Interférences de l'homme sur la nature : les équilibres biologiques. Appel aux jeunes gens
1968
Pavan, Mario |
An introduction to the landscape : wildlife and land use ecology and conservation in Masailand and other areas of the southern Rift Valley and central provinces in Kenya and Northern Province, Tanganyika
1961
Talbot, Lee M. (Lee Merriam) |
Talbot, Martha H. |
Lamprey, Hugh F. |
A look at threatened species : a report on some animals of the Middle East and southern Asia which are threatened with extermination
1960
Talbot, Lee M. (Lee Merriam) |
