TY  - BOOK
AU  - Wilson, Robin J
AU  - Watkins, John J.
TI  - Graphs: an introductory approach :a first course in discrete mathematics 
SN  - 0471513407
AV  - QA166 .W55 1990
PY  - 1990///
CY  - New York
PB  - John Wiley & Sons
KW  - Graph theory
N1  - "Based on The Open University course Graphs, Networks and Design."; Includes bibliographical references and index
ER  -