TY  - BOOK
AU  - Johnsonbaugh, Richard.
TI  - Discrete mathematics
SN  - 8178082799
U1  - 511.8  5
PY  - 2001///
CY  - New Delhi
PB  - Pearson Education
KW  - Logic and proofs
KW  - Counting methods and the pigeonhole principle
KW  - Recurrence relations
ER  -