APA (7th ed.) Citation

(1914). A warning: Great Britain is perparing to sink an American ship .. American Truth Society.

Chicago Style (17th ed.) Citation

A Warning: Great Britain Is Perparing to Sink an American Ship .. [U.S.]: American Truth Society, 1914.

MLA (9th ed.) Citation

A Warning: Great Britain Is Perparing to Sink an American Ship .. American Truth Society, 1914.