TY  - BOOK
AU  - Lipschutz, Seymour Lipson, Marc Lars 
TI  - Theory and problems of discrete mathematics 
SN  - 0-07-463710-X 
U1  - 511.6 LIP  
PY  - 2001///
CY  - Tata mcgraw hill 
PB  - New Delhi 
KW  - MATHEMATICS
ER  -