Wong, L. (1991). Essential study skills. Illinois: Houghton Mifflin.
Dyfyniad Arddull ChicagoWong, Linda. Essential Study Skills. Illinois: Houghton Mifflin, 1991.
Dyfyniad MLAWong, Linda. Essential Study Skills. Illinois: Houghton Mifflin, 1991.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.