Kirn, E., & Jack, D. (1996). Interactions one (3d ed.). McGraw-Hill Companies.
Dyfyniad Arddull ChicagoKirn, Elaine, and Darcy Jack. Interactions One. 3d ed. New York: McGraw-Hill Companies, 1996.
Dyfyniad MLAKirn, Elaine, and Darcy Jack. Interactions One. 3d ed. McGraw-Hill Companies, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.