00473nam a22001697a 4500003000400000008004100004020001800045082001600063100002700079245005000106250001200156260004600168300001000214650002000224650003300244650002600277OSt220401b           ||||| |||| 00| 0 eng d  a9788171391493  a333.7bT84P  aTrivedi, Priya Ranjan.  aParyavaran Vigyan / cby Priya Ranjan Trivedi  a1st ed.  a.- New Delhib: Jnanada Prakashanc, 2020  a453p.  aSocial Sciences  aSocial Problems and Services  aEnvironmental Science