APA

Shackleton R., United States, . (2009). Potencial impacts of climate change in the United States. [Washington, D.C]: Congress of the U.S., Congressional Budget Office.

Chicago

Shackleton Robert, United States, . 2009. Potencial impacts of climate change in the United States. [Washington, D.C]: Congress of the U.S., Congressional Budget Office.

Harvard

Shackleton R., United States, . (2009). Potencial impacts of climate change in the United States. [Washington, D.C]: Congress of the U.S., Congressional Budget Office.

MLA

Shackleton Robert, United States, . Potencial impacts of climate change in the United States. [Washington, D.C]: Congress of the U.S., Congressional Budget Office. 2009.