TY  - BOOK
AU  - Ullman,Jeffrey D
AU  - Widom,Jennifer
TI  - A first course in database systems
SN  - 0138613370
PY  - 1997///
CY  - Upper Saddle River, N.J.
PB  - Prentice Hall
KW  - Database management
N1  - "An Alan R. Apt book."; Includes bibliographical references and index
ER  -