APA (7th ed.) Citation

Ernst, F. (1966). The Germans and their modern history / by F. Ernst. Columbia U.P..

Chicago Style (17th ed.) Citation

Ernst, F. The Germans and Their Modern History / by F. Ernst. Columbia U.P., 1966.

MLA (9th ed.) Citation

Ernst, F. The Germans and Their Modern History / by F. Ernst. Columbia U.P., 1966.

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