TY  - BOOK
AU  - Borkin Sheldon A
TI  - Data models: A semantic approach for database systems
T2  - MIT Press Series in Computer Science
U1  - D65,8(B)3, M01 
PY  - 1980///
CY  - Cambridge
PB  - MIT Press        
KW  -  Data processing
KW  - Computer science
ER  -