Hänvisningar gällande denna post

APA-referens (7:e uppl.)
Ackerman, B. A., & Hassler, W. T. (1981). Clean coal/dirty air: Or how the Clean Air Act became a multibillion-dollar bail-out for high-sulfur coal producers and what should be done about it. Yale University Press.
Chicago-referens (17:e uppl.)
Ackerman, Bruce A., och William T. Hassler. Clean Coal/dirty Air: Or How the Clean Air Act Became a Multibillion-dollar Bail-out for High-sulfur Coal Producers and What Should Be Done About It. New Haven: Yale University Press, 1981.
MLA-referens (9:e uppl.)
Ackerman, Bruce A., och William T. Hassler. Clean Coal/dirty Air: Or How the Clean Air Act Became a Multibillion-dollar Bail-out for High-sulfur Coal Producers and What Should Be Done About It. Yale University Press, 1981.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.