APA (7th ed.) Citation

Belloc, H., & Chesterton, G. K. (1928). But soft--we are observed! Arrowsmith.

Chicago Style (17th ed.) Citation

Belloc, Hilaire, and G. K. Chesterton. But Soft--we Are Observed! London: Arrowsmith, 1928.

MLA (8th ed.) Citation

Belloc, Hilaire, and G. K. Chesterton. But Soft--we Are Observed! Arrowsmith, 1928.