2002 - Natural Resources Ecology Economics and Policy [2nd Edition] (Hardcover) ISBN-13: 9780130933881 ISBN-10: 0130933880 Genres: Business & Money, Nonfiction, Science & Math, Engineering & Transportation, Outdoors & Nature ? 1999 - Natural Resources Ecology Economics and Policy (Hardcover) ISBN-13: 9780138960773 ISBN-10: 0138960771 Genres: Business & Money, Science & Math, Engineering & Transportation, Outdoors & Nature, Substores ? |