Trích dẫn APA

Castberg, F. (1960). Freedom of speach in the West: A comparative study of public law in France,The United States and Germany. Oslo University Press.

Trích dẫn kiểu Chicago

Castberg, Frede. Freedom of Speach in the West: A Comparative Study of Public Law in France,The United States and Germany. Oslo: Oslo University Press, 1960.

Trích dẫn MLA

Castberg, Frede. Freedom of Speach in the West: A Comparative Study of Public Law in France,The United States and Germany. Oslo University Press, 1960.

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