00579nam a2200217Ia 4500 OSt 20230606104855.0 210423s2017 xx 000 0 und d 978-81-8455-075-7 AL eng 574.5 MOHE MOHAN (Madan G) 119968 Ecology and environment: issues and challenges New Delhi Omega Publications 2017 vi,274 HB 900 INR Ecology 119969 challenges ; Ecology ; environment: ; issues ddc BK 176705 176705 0 0 0 0 MSW SACPG SACPG 2020-02-07 Biblios Book Point 900.00 0 574.5 MOHE PG023409 2022-08-24 00:00:00 2021-04-26 BK