APA (7th ed.) Citation

Ludwig, E. (1934). Leaders of Europe. I. Nicholson and Watson.

Chicago Style (17th ed.) Citation

Ludwig, Emil. Leaders of Europe. London: I. Nicholson and Watson, 1934.

MLA (8th ed.) Citation

Ludwig, Emil. Leaders of Europe. I. Nicholson and Watson, 1934.

Warning: These citations may not always be 100% accurate.