00434n a2200169 a 4500 B B 041133 20220204121656.0 978-93-82209-03-4 363.7 Q7;24 ECO Chaturvedi, D.D. Environmental Studies New Delhi Scholar Tech Press 2017 321p.[in various paging] Environmental problems,Economics T 0 0 0 0 SGGSCC SGGSCC 2021-01-20 13 363.7 Q7;24 ECO 47004 2025-01-16 00:00:00 2025-01-13 2021-01-20 BK 54994 54994