Townsend Colin R Essentials of ecology - 2 - Oxford Blackwell Pub. 2003 - xiv, 530p Bibliographical references 501-512p; Index 513-530p ISBN: 1405103280 (pbk) Standard No.: 10360 Source: N R, Textbook Subjects--Topical Terms: EcologyBiology Dewey Class. No.: G:5, P0;P3-;1