Singh, Y.K. <br/><br/>
Teaching of environmental science 
Y. K. Singh. 
 - New Delhi  A.P.H. Publications  2005 
 - x, 366p.; 22cm. 
<br/><br/><label>ISBN: </label>8176489093 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nature studies; Environmental abuse.
<br/><br/><label>Dewey Class. No.: </label>372.357044  / S47T