APA (7th ed.) Citation

Spengler, O. (1939). The decline of the West (special ed.). A. A. Knopf.

Chicago Style (17th ed.) Citation

Spengler, Oswald. The Decline of the West. special ed. A. A. Knopf, 1939.

MLA (9th ed.) Citation

Spengler, Oswald. The Decline of the West. special ed. A. A. Knopf, 1939.

Warning: These citations may not always be 100% accurate.