000 00269nam a2200121Ia 4500
008 211209s1978 xx 000 0 und d
041 _aeng
082 _a620.11 N77 CHO
100 _aCHOUDHARY ROY
245 _aENGINEERING MATERIALS
260 _c1978
300 _a364
999 _c11772
_d11772