Harris. The Obama Effect. State University of New York Press.
Dyfyniad Arddull ChicagoHarris. The Obama Effect. State University of New York Press.
Dyfyniad MLAHarris. The Obama Effect. State University of New York Press.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.