Hayward, J. H. (1969). Pears handy reference book. Pelham Books.
Dyfyniad Arddull ChicagoHayward, Judith H. Pears Handy Reference Book. Pelham Books, 1969.
Dyfyniad MLAHayward, Judith H. Pears Handy Reference Book. Pelham Books, 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.