APA引文

Elster, J. (1986). An introduction to Karl Marx. Cambridge [Cambridgeshire]: Cambridge University Press.

Trích dẫn kiểu Chicago

Elster, Jon. An Introduction to Karl Marx. Cambridge [Cambridgeshire]: Cambridge University Press, 1986.

MLA引文

Elster, Jon. An Introduction to Karl Marx. Cambridge [Cambridgeshire]: Cambridge University Press, 1986.

警告：这些引文格式不一定是100％准确.