TY  - BOOK
AU  - Dowsing, R.D., Rayward-smith, V.J. & Walter, C.D.
TI  - A first course in formal logic and its applications in computer science
SN  - 0-632-01308-7
U1  - 519.4 Dow 
PY  - 1986///
CY  - Blackwell scientific publications, London
ER  -