ALLEN, O. E. (1979). Shade Gardens Oliver E. Allen Dan Time-life Book. Time-Life Books.
Dyfyniad Arddull ChicagoALLEN, Oliver E. Shade Gardens Oliver E. Allen Dan Time-life Book. Time-Life Books, 1979.
Dyfyniad MLAALLEN, Oliver E. Shade Gardens Oliver E. Allen Dan Time-life Book. Time-Life Books, 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.