APA (7th ed.) Citation

Liepman, H., Simons, H. C. R., Paul, E., & Paul, C. (1937). Death from the skies: A study of gas and microbial warfare. M. Secker & Warburg ltd.

Chicago Style (17th ed.) Citation

Liepman, Heinz, H. C. R. Simons, Eden Paul, and Cedar Paul. Death from the Skies: A Study of Gas and Microbial Warfare. London: M. Secker & Warburg ltd, 1937.

MLA (9th ed.) Citation

Liepman, Heinz, et al. Death from the Skies: A Study of Gas and Microbial Warfare. M. Secker & Warburg ltd, 1937.