एपीए उद्धरण

Spengler, O. (1934). The hour of decision: Germany and world-historical evolution. New York: A. A. Knopf.

शिकागो स्टाइल उद्धरण

Spengler, Oswald. The Hour of Decision: Germany and World-historical Evolution. New York: A. A. Knopf, 1934.

एमएलए उद्धरण

Spengler, Oswald. The Hour of Decision: Germany and World-historical Evolution. New York: A. A. Knopf, 1934.