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  (2 items found)
Title Author / Artist Prod Type ISBN/ISBN-13
or UPC		 Pub
Date		 Price
Science and Ecosystem Management in the Naitonal ParksHalvorson, William L.Hardcover0816515662 /
9780816515660		05/1996$47.50
Southwestern Desert ResourcesHalvorson, William L.Hardcover0816528179 /
9780816528172		05/2010$42.75
  (2 items found)