Rana, S V S. Essentials of ecology and environmental science / S V S Rana. - 2nd ed / . - New Delhi : Prentice Hall of India , 2005. - xv,488P. : ills.,charts,diagrams,charts,tables ; 23cm . Includes glossary, references and index ISBN: 812032773X RS250.00 Subjects--Index Terms: ECOLOGY Dewey Class. No.: 577 / RAN/E