TY  - BOOK
AU  - Wilson,Robin J.
AU  - Watkins,John J.
TI  - Graphs: an introductory approach:  a first course in discrete mathematics 
SN  - 0471615544
PY  - 1990///
CY  - New York
PB  - John Wiley & Sons, Inc.
KW  - Graph theory
N1  - Based on the Open University course Graphs, Networks and Design; Includes bibliography and index; Open access
ER  -