Atwater, Mary Changes in ecosystems / Mary Atwater ... [et al.]. - New York : Macmillian, c1995. - 102 p. ; ill. ; 25 cm. ISBN: 00227613818 LCCN: Subjects--Topical Terms: Biotic communitiesPeriodicals Ecosystem managementPeriodicals LC Class. No.: QH540 / . 1995 Dewey Class. No.: 577.05