TY  - BOOK
AU  - Behzad,Mehdi
AU  - Chartrand,Gary
AU  - Lesniak-Foster,Linda
TI  - Graphs and digraphs
T2  - Prindle weber and Schmidi International Series
SN  - 0871502615
U1  - 511.5 
PY  - 1979///
CY  - Boston
PB  - Prindle, Weber & Schmidt
KW  - Graph theory
KW  - Directed graphs
N1  - Includes Bibliography: p. [383]-401. and index
ER  -