TY  - BOOK
AU  - Harary, Frank
AU  - Krishnamurthy, V.
TI  - Graph theory
SN  - 0201410338
U1  - 511.5 
PY  - 2001///
CY  - New Delhi
PB  - Narosa
N1  - "With a foreword and an appendix on the the Four colour theorem by V. Krishnamurthy"
ER  -