TY  - BOOK
AU  - Biswal, Purna Chandra
TI  - Discrete mathematics and graph theory .- 2nd ed
SN  - 978-81-203-3880-7
PY  - 2009///
CY  - New Delhi
PB  - PHI Learning Private Ltd.
KW  - Discrete mathematics
KW  -  graph theory
ER  -