A classification of the biogeographical provinces of the world
1975
Udvardy, Miklos D. F. |
IUCN
A preliminary classification of coastal and marine environments
1975
Ray, G. Carleton |
Conservation of Sirenia : current status and perspectives for action
1974
Bertram, G. C. L. (George Colin Lawder) |
Ecological guidelines for development in tropical forest areas of South East Asia : summary of conclusions of [the] Regional Meeting on the Use of Ecological Guidelines for Development in Tropical Forest Areas of South East Asia
1974
Poore, Duncan |
Ecological guidelines for development in tropical forest areas of South East Asia : summary of conclusions of [the] Regional Meeting on the Use of Ecological Guidelines for Development in Tropical Forest Areas of South East Asia held at Bandung, Indonesia, 29 May to 1 June 1974, including ecological guidelines formulated at the meeting
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 |