APA引文

(1950). To Amend Title 28, U.S. Code [electronic resource].

芝加哥风格引文

To Amend Title 28, U.S. Code [electronic Resource]. 1950.

MLA引文

To Amend Title 28, U.S. Code [electronic Resource]. 1950.

警告：这些引文格式不一定是100％准确.