000
00266nam a2200109Ia 4500
008
230621s9999 xx 000 0 und d
020
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9780201684193
100
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C. J. Date
_9
1652
245
0
_a
An introduction to database systems
260
_b
Addision
942
_c
MCA
999
_c
8920
_d
8920