TY  - BOOK
AU  - Biswal,Purna Chandra
TI  - Discrete mathematics and graph theory / 
SN  - 9788120338807
U1  - 512.74 
PY  - 2009///
CY  - New Delhi : 
PB  - PHI Learning , 
KW  - ALGEBRA-MATHEMATICS
N1  - Includes index
ER  -