Parchi nazionali e regionali : materiali per la legge quadro
1981
Graziani, Carlo Alberto |
Environmental law
Rechtsprobleme bei der Einrichtung und Unterhaltung von Nationalparken
1974
Hoffmann, Georg |
Yearbook of international environmental law : volume 2, 1991
1992
Handl, Günther |
Conference to prepare an agreement on the conservation of polar bears : final act and summary record
1974
The tropical forest ecosystems : the emerging legal regime
1990
Nagore, Arjun Prasad |