APA (7th ed.) Citation

O'Brien, P. (1918). Outwitting the Hun: My escape from a German prison camp. Harper & brothers.

Chicago Style (17th ed.) Citation

O'Brien, Pat. Outwitting the Hun: My Escape from a German Prison Camp. New York And London: Harper & brothers, 1918.

MLA (9th ed.) Citation

O'Brien, Pat. Outwitting the Hun: My Escape from a German Prison Camp. Harper & brothers, 1918.