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1
Index to selected outdoor recreation literature : citation item numbers 60001-60991 (1966).
Published 1967Subjects:Book -
2
Index to selected outdoor recreation literature : citation item numbers 70848-71686 (1967).
Published 1969Subjects:Book -
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4
Recreation ecology : the ecological impact of outdoor recreation and ecotourism
Published 1997Subjects:Book -
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9
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10