TY  - BOOK
AU  - Mittra,Sitansu S
TI  - Principles of relational database systems
SN  - 0137167962
PY  - 1991///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Relational data bases
N1  - Includes bibliographical references and index
ER  -