APA (7th ed.) Citation

Pelling, H. (1954). The challenge of socialism. A. and C. Black.

Chicago Style (17th ed.) Citation

Pelling, Henry. The Challenge of Socialism. London: A. and C. Black, 1954.

MLA (8th ed.) Citation

Pelling, Henry. The Challenge of Socialism. A. and C. Black, 1954.