Hartmann, P. (2002). Interactions access: Reading/writing book. New York: McGraw-Hill.
Dyfyniad Arddull ChicagoHartmann, Pamela. Interactions Access: Reading/writing Book. New York: McGraw-Hill, 2002.
Dyfyniad MLAHartmann, Pamela. Interactions Access: Reading/writing Book. New York: McGraw-Hill, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.