L'inventaire du capital-nature : méthode de classification et de cartographie écologique du territoire (3e approximation) 1977 Jurdant, M. | Bélair, J. L. | Gerardin V. | Ducruc, Jean-Pierre |
Observation on the comparative management techniques adopted by U.S. Park Service and Canadian National Parks with special reference to their planning processes and strategies : period 18 June - 13 August 1981 1981 Pertet, Fred Ole |
Proceedings 19th. Federal - Provincial parks conference : parks and tourism in the 80s : prostitution or progress ? 1980
Wildlife conservation on private lands : proceedings of the private stewardship/landowner contact workshop. Winnipeg, Canada August 1987