000 00269nam a2200109Ia 4500
008 160710s1955 xx 000 0 und d
100 _aCHOWDHARY,K.P. ROY
245 _aEMGINEERING MATERIALS
260 _aGAUHAT
_bCHAUDHARY PUB.
_c1955
300 _a237
942 _2ddc
_cB
999 _c23012
_d23012