APA引文

Humboldt, W. V. F. (1969). The limits of state action. University press.

Chicago Edition Citation

Humboldt, Wilhelm Von Freiherr. The Limits of State Action. Cambridge: University press, 1969.

MLA引文

Humboldt, Wilhelm Von Freiherr. The Limits of State Action. University press, 1969.

警告：這些引文格式不一定是100％准確.