000 00380nam a22001457a 4500
005 20170530112303.0
008 170530b xxu||||| |||| 00| 0 eng d
020 _a978-81-219-1547-2
041 _aeng
100 _aDUGGAL, DR. K.N.
_93861
245 _aELEMENTS OF ENVIRONMENTAL ENGINEERING
260 _aNEW DELHI
_bS.CHAND & COMPANY PVT.LTD
_c1966
300 _a451
942 _cBK
999 _c5457
_d5455