TY  - GEN
AU  - Chartrand, Gary
AU  - Lesniak, Linda
AU  - Zhang, Ping
TI  - Graphs & Digraphs
SN  - 9781439826270
U1  - 511.5 
PY  - 2011///
CY  - Boca Raton
PB  - Taylor & Francis
KW  - Combinatoric
KW  - computer science
KW  - Directed graph
KW  - graph theory
KW  - mathematics
ER  -