TY  - BOOK
AU  - Baber,robert Lawrence
TI  - Error: Free sotfware- know- how and know-why of program correctness 
SN  - 0471930164
PY  - 1991///
CY  - Chichester
PB  - Wiley
KW  - Computer software
KW  - development
KW  - reliality
ER  -