De, Anil Kumar. Textbook of environmental science : for undergraduate students of all universities / Anil Kumar De and Arnab Kumar De. - New Delhi : Rajan Jain, 2014. - xvi, 151 p. : ill. ; 24 cm. Includes index. Includes bibliographical references. 300 300 ISBN: 978-93-81714-54-6 Subjects--Topical Terms: Environmental sciences Dewey Class. No.: 363.7 / D34f