APA (7th ed.) Citation

Churchill, W. (1937). The unknown war: The Eastern front. T. Butterworth.

Chicago Style (17th ed.) Citation

Churchill, Winston. The Unknown War: The Eastern Front. London: T. Butterworth, 1937.

MLA (8th ed.) Citation

Churchill, Winston. The Unknown War: The Eastern Front. T. Butterworth, 1937.

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