TY  - BOOK
AU  - Barrow Leonard S
AU  -  Arbib Michael A
TI  - Discrete mathematics: applied algebra  for computer and information science
U1  - B20aD65,8(B), L4 
PY  - 1974///
CY  - Philadelphia
PB  - W B Saunders       
KW  - Discrete mathematics
ER  -