000 00474nam a2200169Ia 4500
001 64824
008 211027n ii |||gr||||Z||||||465
020 _a9788173814044
082 _a363.7
100 _aSantra, S C ,
_eAuthor.
245 0 _aEnvironmental science
_cS C Santra
_hTextual Documents
250 _a2nd ed.
260 _aGuwahati:
_bNew Central Book Agency (P) Ltd.,
_c2020.
300 _axxx, 1616p.:
_c24cm.
653 _aEnvironmental science
942 _2ddc
_cBK
999 _c65924
_d65924