Saxena H M Environmental studies - Jaipur Rawat Publications 2006 - xiv, 234p cm. Bibliography P 227-229; Glossary P 215-226 ISBN: 8170339936 420.75 Source: 223, 04/01/2008, Bharatiya Sahitya Bhavana General Book Subjects--Topical Terms: Geography Dewey Class. No.: U:(G:55), P6