APA (7th ed.) Citation

Stromberg, R. N. (1988). Europe in the twentieth century (2. ed.). Prentice Hall.

Chicago Style (17th ed.) Citation

Stromberg, Roland N. Europe in the Twentieth Century. 2. ed. Englewood Cliffs, NJ: Prentice Hall, 1988.

MLA (9th ed.) Citation

Stromberg, Roland N. Europe in the Twentieth Century. 2. ed. Prentice Hall, 1988.