00273nam a2200121Ia 4500 Ullman/ J.D. BK Database systems Principles of Database Systems Galgotia Pub Nrew delhi 1993 ENGLISH 22129 22129 0 0 0 0 CRC CRCE CRCE 1518 | 39 2023-03-17 110.00 0 5239 2023-03-17 110.00 2023-03-17 BK