TY  - BOOK
TI  - Graphs and homomorphisms
SN  - 9780198528173 (print) | 9780191713644 (ebook) :
PY  - 2004///
CY  - Oxford
PB  - Oxford University Press
UR  - http://dx.doi.org/10.1093/acprof:oso/9780198528173.001.0001
ER  -