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1985
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Tatshenshini : river wild
1993
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Wilderness and biodiversity conservation
2003
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Pilgrim, John D. |
Wild life and conservation in Guyana
1968
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Poonai, N. O. |
A trail use surveys, Banff and Yoho national park
1967
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Adventuring in Alaska
1982
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Wilderness
1982
Martin, Vance |
Alaska : the sophisticated wilderness
1976
Gardey, Jon |
Alaska wilderness : exploring the Central Brooks Range
1970
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