TY  - BOOK
AU  - Olle, T. William
TI  - The Codasyl approach to data base management
T2  - Wiley series in computing
SN  - 0471995797
PY  - 1978///
CY  - Chichester
PB  - John Wiley
KW  - Database management systms
KW  - DML
ER  -