Tohutoro APA (7th ed.)

ebrary, Inc, & Helm, D. (2005). Climate-change policy. Oxford University Press.

Tohutoru Kātū Chicago (17th ed.)

ebrary, Inc, me Dieter Helm. Climate-change Policy. Oxford: Oxford University Press, 2005.

Tohutoro MLA (9th ed.)

ebrary, Inc, me Dieter Helm. Climate-change Policy. Oxford University Press, 2005.