TY  - BOOK
T1  - The relational model for database management : version 2
A1  - Codd, E.F
LA  - English
PP  - Reading, etc.
PB  - Addison-Wesley
YR  - 1990
UL  - https://colectivo.uloyola.es/Record/L5812
OP  - 538
SN  - 0201141922
KW  - Bases de datos : Gestión
ER  -