TY  - BOOK
TI  - An Introduction to Discrete Mathematics : : Second Edition / 
SN  - 0155417504
U1  - Discrete Mathematics; Mathematical Logic; Computer Science Foundations 
PY  - 1989///
CY  - Orlando, Florida : 
PB  - Dar Harcourt College Publishers – 1989 ، 
KW  - 511.3
ER  -