APA (7th ed.) Citation

Röpke, W., & Overbeek, J. (1987). 2 essays. University Press of America.

Chicago Style (17th ed.) Citation

Röpke, Wilhelm, and Johannes Overbeek. 2 Essays. Lanham, MD: University Press of America, 1987.

MLA (9th ed.) Citation

Röpke, Wilhelm, and Johannes Overbeek. 2 Essays. University Press of America, 1987.