Cita APA (7th ed.)

Cartwright, F. C. (1937). G-men of the G. P. O.: The story of the G. P. O.'s fight against crime. S. Low, Marston.

Cita Chicago (17th ed.)

Cartwright, Frederick Charles. G-men of the G. P. O.: The Story of the G. P. O.'s Fight Against Crime. London: S. Low, Marston, 1937.

Cita MLA (8th ed.)

Cartwright, Frederick Charles. G-men of the G. P. O.: The Story of the G. P. O.'s Fight Against Crime. S. Low, Marston, 1937.