Upadhyay Pradeep Kumar  <br/><br/>
Paryavaran Adhyayan   Ek Samagra Avlokan 

 - New Delhi   K K Publication   2025 
 - 399p. 
<br/><br/><label>ISBN: </label>97881784412518 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paryavaran <br/>Adhyayan 
<br/><br/><label>Dewey Class. No.: </label>333.707 UPA