000 00288nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a628
100 _aRoy K Varghese
245 0 _aSustainable Engineering
250 _a1
260 _bPentex Book Publishers,Kollam
_c2015
942 _cBK
999 _c27998
_d27998