000 00291nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a628
100 _aRag R L
245 0 _aIntroduction to Sustainable Engineering
250 _a2
260 _bPhi Learning, New Delhi
_c2016
942 _cBK
999 _c29856
_d29856