Rebecca E Hayden, Dorothy W. Pilgrim, & Aurora Quiros Haggard. (1956). Mastering American English A Handbook Workbook of Essentials. New York: Prentice-Hall.
Dyfyniad Arddull ChicagoRebecca E Hayden, Dorothy W. Pilgrim, và Aurora Quiros Haggard. Mastering American English A Handbook Workbook of Essentials. New York: Prentice-Hall, 1956.
Dyfyniad MLARebecca E Hayden, Dorothy W. Pilgrim, và Aurora Quiros Haggard. Mastering American English A Handbook Workbook of Essentials. New York: Prentice-Hall, 1956.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.