Towards a new relationship of man and nature in temperate lands. Part 1. Ecological impact of recreation and tourism upon temperate environment
1967
IUCN
A review of recent knowledge on the relationship between the tsetse fly and its vertebrate hosts
1965
Glover, P. E. |
Project Mar : the conservation and management of temperate marshes, bogs and other wetlands. Volume 2. List of European and North African wetlands of international importance
1965
Olney, Peter J. S. (Peter James Stephen) |
Project Mar : the conservation and management of temperate marshes, bogs and other wetlands. Volume 1. Proceedings of the Mar conference
1964
Hoffmann, Lukas |
Conservation of nature and natural resources in modern African states : report of a symposium
1963
Watterson, Gerald G. |
Harmonies universelles
1962
Baer, Jean G. |
Heim, Roger |
Derniers refuges : atlas commenté des réserves naturelles dans le monde
1956
Heim, Roger |