Keddy, Paul A., Wetland ecology : principles and conservation / Paul A. Keddy. - 3 ed. - xii, 581 p. col. ill 25 cm Includes bibliographical references and index. ISBN: 9781009288637 9781009288644 Subjects--Topical Terms: Wetland ecology.Wetland conservation. Dewey Class. No.: 577.68 / KED