Ashby, E., & Anderson, M. (1981). The politics of clean air. Clarendon Press ; Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Ashby, Eric, agus Mary Anderson. The Politics of Clean Air. Oxford : New York: Clarendon Press ; Oxford University Press, 1981.
Lua MLA (9ú heag.)Ashby, Eric, agus Mary Anderson. The Politics of Clean Air. Clarendon Press ; Oxford University Press, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.