000 00257nam a2200121Ia 4500
008 161008s9999 xx 000 0 und d
100 _aDHAR D N
245 _aENGINEERING CHEMISTRY
250 _a3RD
260 _bVAYU
_c2013
300 _a435
942 _cBK
999 _c43275
_d43275