Singh, H. R <br/><br/>
Environmental biology 
H.R. Singh 
 - 1st ed 
 - New Delhi  S. Chand & Co  2005 
 - xii, 210 p. : ill, 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9788121924764 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Biology
<br/><br/><label>Dewey Class. No.: </label>577 SIN