Hobson, A. The Oxford Dictionary Dificult Words. Oxford University.
Dyfyniad Arddull ChicagoHobson, Archie. The Oxford Dictionary Dificult Words. Oxford University.
Dyfyniad MLAHobson, Archie. The Oxford Dictionary Dificult Words. Oxford University.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.