000
00299nam a2200121Ia 45e0
008
181001s1977 xx 000 0 und d
100
_a
Sahai S.
245
0
_a
Elements of Age Engineering
250
_a
2nd
260
_a
Delhi
_b
East West
_c
1977
300
_a
411
942
_2
ddc
_c
BK
999
_c
2718
_d
2718