Uekötter, F. (2009). The age of smoke: Environmental policy in Germany and the United States, 1880-1970. University of Pittsburgh Press.
芝加哥风格引文Uekötter, Frank. The Age of Smoke: Environmental Policy in Germany and the United States, 1880-1970. Pittsburgh, Pennsylvania: University of Pittsburgh Press, 2009.
MLA引文Uekötter, Frank. The Age of Smoke: Environmental Policy in Germany and the United States, 1880-1970. University of Pittsburgh Press, 2009.
警告：这些引文格式不一定是100％准确.