TY  - BOOK
AU  - Schaffer, Clifford A.
TI  - Working with FOCUS: an introduction to Database management
SN  - 083062810X
U1  - 005.74 
PY  - 1987///
CY  - New York
PB  - Tab Books
KW  - Focus-Computer program language
KW  - <Computer science>
ER  -