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Displaying items 1 - 3 of 3
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1. Urban land, urban tree cover and urban impervious cover by conterminous United States counties from 2010 to 2060

Author(s):
Nowak, David J.; Greenfield, Eric J.

2. Desolation Wilderness: data from 1997-1998 visitor response to fees, fee demonstration project

Author(s):
Watson, Alan E.; Puttkammer, Annette; Christensen, Neal A.

3. Auyuittuq and Quttinirpaaq National Parks in the eastern Arctic Nunavut Region of Canada: 2003-2004 visitor experience study

Author(s):
Watson, Alan E.; Lachapelle, Paul R.; McCool, Stephen F.