Walker, K. R. (1966). The days the Presidents died: Leading men, issues, and ideas. Pioneer Press].
芝加哥风格引文Walker, Kenneth Roland. The Days the Presidents Died: Leading Men, Issues, and Ideas. [Little Rock, Ark.: Pioneer Press], 1966.
MLA引文Walker, Kenneth Roland. The Days the Presidents Died: Leading Men, Issues, and Ideas. Pioneer Press], 1966.
警告：这些引文格式不一定是100％准确.