APA (7th ed.) Citation

Spengler, O., & Atkinson, C. F. (1926). The decline of the west: Volume 1: Form and actuality. Allen & Unwin.

Chicago Style (17th ed.) Citation

Spengler, Oswald, and Charles Francis Atkinson. The Decline of the West: Volume 1: Form and Actuality. London: Allen & Unwin, 1926.

MLA (8th ed.) Citation

Spengler, Oswald, and Charles Francis Atkinson. The Decline of the West: Volume 1: Form and Actuality. Allen & Unwin, 1926.