APA (7th ed.) Citation

Walcott, S. (1918). Above the French lines: Letters of Stuart Walcott, American aviator: July 4, 1917, to December 8, 1917. Princeton university press; [etc., etc.].

Chicago Style (17th ed.) Citation

Walcott, Stuart. Above the French Lines: Letters of Stuart Walcott, American Aviator: July 4, 1917, to December 8, 1917. Princeton: Princeton university press; [etc., etc.], 1918.

MLA (9th ed.) Citation

Walcott, Stuart. Above the French Lines: Letters of Stuart Walcott, American Aviator: July 4, 1917, to December 8, 1917. Princeton university press; [etc., etc.], 1918.