(2009). The official Sat: Study guide (2th ed.). New York: College Board.
Dyfyniad Arddull ChicagoThe Official Sat: Study Guide. 2th ed. New York: College Board, 2009.
Dyfyniad MLAThe Official Sat: Study Guide. 2th ed. New York: College Board, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.