APA citiranje

Spengler, O. (1962). The decline of the West. London: Geoge Allen & Urwin.

Trích dẫn kiểu Chicago

Spengler, Oswald. The Decline of the West. London: Geoge Allen & Urwin, 1962.

MLA citiranje

Spengler, Oswald. The Decline of the West. London: Geoge Allen & Urwin, 1962.

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