Dickinson, Gordon Ecosystems / Gordon Dickinson and Kevin Murphy - 2nd ed - London: Routledge, 2007 - xvi, 205 p. : ill. ; 26 cm. - Routledge introductions to environemnt series . Includes bibliographical references and index ISBN: 9780203401378 £ 86.00 Subjects--Topical Terms: Biotic communities Dewey Class. No.: 577