Uekötter, F. (2009). The age of smoke: Environmental policy in Germany and the United States, 1880-1970. University of Pittsburgh Press.

Uekötter, Frank. The Age of Smoke: Environmental Policy in Germany and the United States, 1880-1970. Pittsburgh, Pennsylvania: University of Pittsburgh Press, 2009.

Uekötter, Frank. The Age of Smoke: Environmental Policy in Germany and the United States, 1880-1970. University of Pittsburgh Press, 2009.