TY  - BOOK
AU  - Ullman,Jeffrey O
TI  - Principles of database systems
U1  - 005.74 19
PY  - 1984/// (rep. 1992)
CY  - New Delhi
PB  - Galgotia Publicatons
KW  - Data bases
KW  - Spines
KW  - Computer programming
KW  - Data organization
N1  - Bibliography : p. 451-473; cse
N2  - Computer Science
ER  -