Singh, Harsaran.  <br/><br/>
अनुकूलन और पर्यावरण I Anukulan Aur Paryavaran. / 

 - Ram Nagar :  Yureshiya Publishing House,   
 - viii, 132 p.  illus. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Science.<br/>Agriculture.
<br/><br/><label>Dewey Class. No.: </label>613.1  / V826A