00447nam a22001814a 4500 34070 160208n ii |||gr||||Z||||||eng 978 81 8069 774 6 MAIN eng 333 SIN Singh R.P., Author. Environmental Studies R.P. Singh 1st / Asian. N.Delhi: Concept Publishing Company Pvt Ltd, 2012. 344. Economics BK 69509 69509 0 0 0 333_000000000000000_SIN 0 89382 MAIN MAIN Reference 2018-05-03 Environmental Shelf 0 333 SIN UGC20734 2018-05-03 1 2018-05-03 BK