APA (7th ed.) Citation

Walter, H. (1966). Schwarzschild and Das Neue Tage-Buch. Journal of contemporary history.

Chicago Style (17th ed.) Citation

Walter, Hans-Albert. "Schwarzschild and Das Neue Tage-Buch." Journal of Contemporary History 1966.

MLA (8th ed.) Citation

Walter, Hans-Albert. "Schwarzschild and Das Neue Tage-Buch." Journal of Contemporary History, 1966.

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