00613nam a22002057a 450000500170000000800410001702000180005804100080007608200210008410000200010524500990012526000320022430000180025665000260027465000260030065000260032665000290035270000180038188000080039920230208173140.0230117b        |||||||| |||| 00| 0 eng d  a9789326193559  aeng  a333.7076bSIN-NT  aSingla, Deepika  6880aNTA UGC NET/ JRF/ SET paper 2 environmental sciencec/ by Deepika Singla and Vivek Sharma  aNew Delhi :bArihant,c2019  a691p.;c27cm.  aEnvironmental science  aEnvironmental studies  aEnvironmental biology  aEnvironmental  chemistry  aSharma, Vivek  6245