000 00364nam a2200145Ia 4500
654 _aCIVI
100 _aChawla, S.
250 _aEd. 1st.
020 _a9781259006388
245 _aA Textbook of Environmental Studies
260 _bMc Graw Hill Education (India) Pvt. Ltd.
_aChennai
_c2017
082 _bCHA
_a620.8
300 _axi, 258 p.
999 _c35707
_d35707
300 _c20 cm.
041 _aeng
546 _aText in English