TY  - BOOK
AU  - Rosen, Kenneth H 
TI  - Discrete mathematics and its applications 
SN  - 0-07-047373-0 
U1  - 511.6 KEN  
PY  - 1999///
CY  - Tata mcgraw hill 
PB  - New Delhi 
KW  - MATHEMATICS
ER  -