Simpson, S. (1946). Belgium in transition. Philadelphia: American Academy of Political and Social Science.
芝加哥风格引文Simpson, Smith. Belgium in Transition. Philadelphia: American Academy of Political and Social Science, 1946.
MLA引文Simpson, Smith. Belgium in Transition. Philadelphia: American Academy of Political and Social Science, 1946.
警告：这些引文格式不一定是100％准确.