R. Gupta's guide to environmental sciences :

                                                                                                                
333.7BIR
Birendra Bahadur Singh
   R. Gupta's guide to environmental sciences : a comprehensive book for UGC-NET, UPSC, IFS, banking and other recruitment and entrance examinations / by Birendra Bahadur Singh.- New Delhi:Ramesh Publishing House,2011.
  iv,264p.;24cm (pbk)
  ISBN:9788178128597     Rs. 165.00

  DBAD/PUB /ENG-97970/ EN-81503 /   165.00 /sign

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