Schaffer, Ronald (Sep 1980). "American Military Ethics in World War II: The Bombing of German Civilians". The Journal of American History. 67 (2): 318–334. doi:10.2307/1890411. JSTOR1890411.
Schaffer, Ronald (Sep 1980). "American Military Ethics in World War II: The Bombing of German Civilians". The Journal of American History. 67 (2): 318–334. doi:10.2307/1890411. JSTOR1890411.