APA (7th ed.) Citation

(1939). Germany - what next?: Being an examination of the German menace in so far as it affects Great Britain (1. publ.). Penguin Books.

Chicago Style (17th ed.) Citation

Germany - What Next?: Being an Examination of the German Menace in so Far as It Affects Great Britain. 1. publ. Harmondsworth: Penguin Books, 1939.

MLA (9th ed.) Citation

Germany - What Next?: Being an Examination of the German Menace in so Far as It Affects Great Britain. 1. publ. Penguin Books, 1939.