APA引文

Babcock, C. M. (1964). The American frontier. Holt, Rinehart and Winston.

芝加哥风格引文

Babcock, Clarence Merton. The American Frontier. N.Y.: Holt, Rinehart and Winston, 1964.

MLA引文

Babcock, Clarence Merton. The American Frontier. Holt, Rinehart and Winston, 1964.

警告：这些引文格式不一定是100％准确.