American Academy of Political and Social Science, Philadelphia. (1923). The direct primary: J. T. Salter. The American Academy of Political and Social Science.
芝加哥风格引文American Academy of Political and Social Science, Philadelphia. The Direct Primary: J. T. Salter. Philadelphia: The American Academy of Political and Social Science, 1923.
MLA引文American Academy of Political and Social Science, Philadelphia. The Direct Primary: J. T. Salter. The American Academy of Political and Social Science, 1923.
警告：这些引文格式不一定是100％准确.