Sos, V. T., & Lovasz, L. (1981). Algebraic methods in graph theory. North Holland.
Dyfyniad Arddull ChicagoSos, Vera T., and L. Lovasz. Algebraic Methods in Graph Theory. New York: North Holland, 1981.
Dyfyniad MLASos, Vera T., and L. Lovasz. Algebraic Methods in Graph Theory. North Holland, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.