TY  - BOOK
AU  - Rosen , Kenneth H.,
TI  - Discrete mathematics and its application : : with combinatorics and graph theory / 
SN  - 9780070681880
U1  - 511 
PY  - 2007///
CY  - New Delhi
PB  - Mcgraw Hills
KW  - General principles of mathematics
KW  - Discrete mathematics
ER  -