APA (7th ed.) Citation

Engels, F., & Wangermann, E. (1968). The role of force in history: A study of Bismarck's policy of blood and iron ([1st ed.].). International Publishers.

Chicago Style (17th ed.) Citation

Engels, Friedrich, and Ernst Wangermann. The Role of Force in History: A Study of Bismarck's Policy of Blood and Iron. [1st ed.]. New York: International Publishers, 1968.

MLA (9th ed.) Citation

Engels, Friedrich, and Ernst Wangermann. The Role of Force in History: A Study of Bismarck's Policy of Blood and Iron. [1st ed.]. International Publishers, 1968.