TY  - BOOK
AU  - "Kolman, Bernard"
AU  - "Busby, Robert C.; Ross, Sharon Cutler"
TI  - Discrete mathematical structures
SN  - 81-203-1147-7
U1  - 511 
PY  - 2001///
CY  - India
PB  - Prentice Hall Of India
ER  -