APA ציטוט

Spengler, O. (1980). The decline of the West. London: Geoge Allen & Urwin.

Trích dẫn kiểu Chicago

Spengler, Oswald. The Decline of the West. London: Geoge Allen & Urwin, 1980.

ציטוט MLA

Spengler, Oswald. The Decline of the West. London: Geoge Allen & Urwin, 1980.