APA (7th ed.) Citation

Köhl, H., Fitzmaurice, J., C., Hünefeld, E. G., & Dunay, G. F. (1928). The three musketeers of the air: Their conquest of the Atlantic from East to West. G.P. Putnam.

Chicago Style (17th ed.) Citation

Köhl, Hermann, James Fitzmaurice, C, E. G. Hünefeld, and George F. Dunay. The Three Musketeers of the Air: Their Conquest of the Atlantic from East to West. New York, London: G.P. Putnam, 1928.

MLA (9th ed.) Citation

Köhl, Hermann, et al. The Three Musketeers of the Air: Their Conquest of the Atlantic from East to West. G.P. Putnam, 1928.