Cita APA

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

Chicago Style Citation

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

Cita MLA

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

Atenció: Aquestes cites poden no estar 100% correctes.