APA (7th ed.) Citation

Roberts, H. L. (1953). The diplomacy of colonel Beck. The diplomats 1919-1939.

Chicago Style (17th ed.) Citation

Roberts, Henry L. "The Diplomacy of Colonel Beck." The Diplomats 1919-1939 1953.

MLA (8th ed.) Citation

Roberts, Henry L. "The Diplomacy of Colonel Beck." The Diplomats 1919-1939, 1953.

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