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
