A textbook on environmental biology / 
Zaheed, Imtiyaz Hussain; Naser, Rafiuddin 
 - New Delhi :  Discovery Publishing House PVT. LTD,  2016. 
 - 392 p.: ill.; 24.5cm. 
<br/><br/>Includes references, glossary, and index 
<br/><br/><label>ISBN: </label>9350562316 
<br/><br/><label>Dewey Class. No.: </label>C 577 Z19 2016