000 00299nam a2200121Ia 45e0
008 181001s1977 xx 000 0 und d
100 _aSahai S.
245 0 _aElements of Age Engineering
250 _a2nd
260 _aDelhi
_bEast West
_c1977
300 _a411
942 _2ddc
_cBK
999 _c2718
_d2718