Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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