Riedel. Kings and Presidents. Brookings Institution Press.
芝加哥风格引文Riedel. Kings and Presidents. Brookings Institution Press.
MLA引文Riedel. Kings and Presidents. Brookings Institution Press.
警告：这些引文格式不一定是100％准确.
APA引文
Riedel. Kings and Presidents. Brookings Institution Press.
芝加哥风格引文Riedel. Kings and Presidents. Brookings Institution Press.
MLA引文Riedel. Kings and Presidents. Brookings Institution Press.