APA-čujuhus (7. p.)
ebrary, Inc, & Helm, D. (2005). Climate-change policy. Oxford University Press.
Chicago-čujuhus (17. p.)
ebrary, Inc, juo Dieter Helm. Climate-change Policy. Oxford: Oxford University Press, 2005.
MLA-čujuhus (9. p.)
ebrary, Inc, juo Dieter Helm. Climate-change Policy. Oxford University Press, 2005.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.