Schull, J. (1971). The century of the Sun: The first hundred years of Sun Life Assurance Company of Canada. Macmillan of Canada.
Dyfyniad Arddull ChicagoSchull, Joseph. The Century of the Sun: The First Hundred Years of Sun Life Assurance Company of Canada. Toronto: Macmillan of Canada, 1971.
Dyfyniad MLASchull, Joseph. The Century of the Sun: The First Hundred Years of Sun Life Assurance Company of Canada. Macmillan of Canada, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.