APA (7th ed.) Citation

Brown, K. (2017). U-boat assault on America: Why the US was unprepared for war in the Atlantic. Seaforth Publishing.

Chicago Style (17th ed.) Citation

Brown, Ken. U-boat Assault on America: Why the US Was Unprepared for War in the Atlantic. Barnsley: Seaforth Publishing, 2017.

MLA (9th ed.) Citation

Brown, Ken. U-boat Assault on America: Why the US Was Unprepared for War in the Atlantic. Seaforth Publishing, 2017.