TY  - BOOK
AU  - Levy, Leon S.,
AU  - Laboratories, Bell.
AU  - Whippany, N.J.,
TI  - Discrete Structures of Computer Science
SN  - 8122400906
U1  - 004.0151 
PY  - 1980///
CY  - New Delhi
PB  - Wiley Eastern Limited
ER  -