Biotic provinces of the world : further development of a system for defining and classifying natural regions for purposes of conservation 1974
List of mammals which have become extinct or are possibly extinct since 1600 : an extension and updating of the list drawn up by the late James Fisher in 1968 1973 Goodwin, Harry A. | Goodwin, J. M. |
A system for defining and classifying natural regions for purposes of conservation : a progress report 1973 Dasmann, Raymond Fredric |
An ecological survey of the proposed Volcano Baru National Park, Republic of Panama : report of an investigation carried out between 9 February and 9 March 1972 1973 LaBastille, Anne |
Classification and use of protected natural and cultural areas : a report 1973 Dasmann, Raymond Fredric |
Propositions pour la création du Parc national ivoirien de Taï : rapport d'une mission d'étude en Côte d'Ivoire 1973 Rahm, Urs |
Proposals for nature conservation in northern Greece : a report 1971 Hoffmann, Lukas | Bauer, W. | Müller, G. |
Project aqua : a source book of inland waters proposed for conservation 1971 Luther, H. | Rzóska, J. | Worthington, E. B. |
Wildlife utilization and game ranching : report of a study of recent progress in this field in southern Africa 1976 Mossman, Sue Lee | Mossman, Archie S. |