Kehoe. Presidents and Terminal Logic Behavior. Texas A&M University Press.
Dyfyniad Arddull ChicagoKehoe. Presidents and Terminal Logic Behavior. Texas A&M University Press.
Dyfyniad MLAKehoe. Presidents and Terminal Logic Behavior. Texas A&M University Press.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.