Society, G. H. (1980). Historic Guelph: The Royal City. Guelph, Ont..
Dyfyniad Arddull ChicagoSociety, Guelph Historical. Historic Guelph: The Royal City. Guelph, Ont., 1980.
Dyfyniad MLASociety, Guelph Historical. Historic Guelph: The Royal City. Guelph, Ont., 1980.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.