Barilleaux. The Unitary Executive and the Modern Presidency. Texas A&M University Press.
芝加哥风格引文Barilleaux. The Unitary Executive and the Modern Presidency. Texas A&M University Press.
MLA引文Barilleaux. The Unitary Executive and the Modern Presidency. Texas A&M University Press.
警告：这些引文格式不一定是100％准确.