Souter, G. (2007). Edward Hopper: Light and dark. ParkstonePress International.
Dyfyniad Arddull ChicagoSouter, Gerry. Edward Hopper: Light and Dark. New York: ParkstonePress International, 2007.
Dyfyniad MLASouter, Gerry. Edward Hopper: Light and Dark. ParkstonePress International, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.