Coles, E., & Coles, E. Edward Coles collection. Historical Society of Pennsylvania.
Dyfyniad Arddull ChicagoColes, Edward, and Edward Coles. Edward Coles Collection. Philadelphia: Historical Society of Pennsylvania.
Dyfyniad MLAColes, Edward, and Edward Coles. Edward Coles Collection. Historical Society of Pennsylvania.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.