00596nam a22001577a 4500 230509b |||||||| |||| 00| 0 eng d National Science Library National Science Library R 502.2/.7(031) P7.9 Salpekar, Aaradhana 8447 Encyclopaedia of ecology and environment / Bharatiya Khadi Gramodyog Vikas Abhikaram, Vol. 9 research methodology and systems analysis New Delhi: Bharatiya Khadi Gramodyog Vikas Abhikaram, 2007 340p. Encyclopaedia Environment udc BK 27792 27792 0 0 udc 0 R_50227031_P79 0 41064 NSL NSL GF/REF-1/C-3 2008-07-21 0 R 502.2/.7(031) P7.9 250242 2023-05-09 00:00:00 2008-07-21 BK