एपीए उद्धरण

Helm, D. (2010). Economics and politics of climate change. Oxford University Press.

शिकागो स्टाइल उद्धरण

Helm, Dieter. Economics and Politics of Climate Change. Oxford University Press, 2010.

एमएलए उद्धरण

Helm, Dieter. Economics and Politics of Climate Change. Oxford University Press, 2010.