Keddy, Paul A. Wetland ecology : principles and conservation / by Paul A. Keddy. - Cambridge : Cambridge University Press, 2000. - xiv, 614 p. : ill., maps ; 24 cm. - Cambridge studies in ecology . ISBN: 0521783674 Subjects--Topical Terms: Wetland ecology; Wetland conservation. Dewey Class. No.: 577.68 KED / 2329