Abramovitz, J. N. Imperiled waters, impoverished future : the decline of freshwater ecosystems J. N. Abramovitz - Washington : Worldwatch Institute (WI) , 1996 - 80p. : ill. ; 20cm. - Worldwatch paper No. 128 . Includes bibliographical references. Subjects--Topical Terms: FreshwaterEcosystemImpoverishment Gov. Doc. Class. No.: US WI P-128