TY  - BOOK
AU  - Malk, D.S and Sen, M.K 
TI  - Discrete mathematics 
SN  - 978-81-315-0572-4 
U1  - 511.6 
PY  - 2011///
CY  - Cengage learning 
PB  - New Delhi 
KW  - MATHEMATICS
ER  -