Keddy, Paul A. Wetland ecology : principles and conservation / Paul A. Keddy. - Cambridge : Cambridge University Press, 2000. - xiv, 614 p. : ill. ; 24 cm. - Cambridge studies in ecology. . Includes index. Includes bibliographical references. ISBN: 0521783674 (pbk.) Subjects--Topical Terms: Wetland ecology.Wetland conservation.