APA (7th ed.) Citation

Spender, J. A. (1933). Fifty years of Europe: A study in pre-war documents. Cassell.

Chicago Style (17th ed.) Citation

Spender, John A. Fifty Years of Europe: A Study in Pre-war Documents. London ;Melbourne: Cassell, 1933.

MLA (8th ed.) Citation

Spender, John A. Fifty Years of Europe: A Study in Pre-war Documents. Cassell, 1933.