APA引文

U. S. Bureau of the census. (1947). A chapter in population sampling. U.S. Govt. Print. Off.

芝加哥风格引文

U. S. Bureau of the census. A Chapter in Population Sampling. Washington, D. C: U.S. Govt. Print. Off, 1947.

MLA引文

U. S. Bureau of the census. A Chapter in Population Sampling. U.S. Govt. Print. Off, 1947.

警告：这些引文格式不一定是100％准确.