Proposals for nature conservation in northern Greece : a report
1971
Hoffmann, Lukas |
Bauer, W. |
Müller, G. |
IUCN
Annual report 1985
1986
Espacios sin habitantes? : parques nacionales de América del Sur
1992
Amend, Stephan |
Amend, Thora |
Parks for life : enhancing the role of protected areas in sustaining society
1991
McNeely, Jeffrey A. |
Bilan régional : Europe
1992
Synge, Hugh |