TY  - BOOK
AU  - Levy, Leon S.
TI  - Discrete structures of computer science
SN  - 0471032085
U1  - 519.4 
PY  - 1980///
CY  - New York
PB  - Wiley
KW  - Set theory
KW  - Functions
KW  - Graph theory
KW  - Algebra
KW  - Computer programming
N1  - Includes index
ER  -