Krause, Jens. Living in groups / by Jens Krause and Graeme D. Ruxton. - / . - New Delhi : Oxford University Press , 2002. - ix, 210p. : ill., fig., ; 23cm . Includes bibliographical reference and index ISBN: 9780198508182 GBP34.95 Subjects--Index Terms: ECOLOGY Dewey Class. No.: 577 / KRA/L