McArthur, E.D.; Sanderson, S.C. 1991. Great Sand Dunes National Monument vegetation patterns. University of Wyoming National Park Service Research Center Annual Report. 15(37): 1-5.
McArthur, E.D.; Sanderson, S.C. 1991. Great Sand Dunes National Monument vegetation patterns. University of Wyoming National Park Service Research Center Annual Report. 15(37): 1-5.