000 00299nam a22001337a 4500
020 _a9780070494633
082 _a628 BAS-E
100 _aBasak N N
_9920
245 _aEnvironmental engineering
260 _aChennai
_bMcGraw-Hill
_c2017
300 _a295p.
650 _aEnvironment
_9921
942 _cBK
999 _c4997
_d4997