Nath P. <br/><br/>
Basics of human civilization food,agriculture and humanity Vol.1 : present scenario 

 - 1st 
 -  New India Publishing Agency, New Delhi  2013 
<br/><br/><label>ISBN: </label>978-81-7233-620-2 
<br/><br/><label>Dewey Class. No.: </label>630NAT