Day, D. (1972). Talk at Seton Hall University.
Dyfyniad Arddull ChicagoDay, Dorothy. Talk at Seton Hall University. 1972.
Dyfyniad MLADay, Dorothy. Talk at Seton Hall University. 1972.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.