APA-referens

Barnes, P., & Peter Barnes. (2001). Who owns the sky?: Our common assets and the future of capitalism. Washington, DC: Island Press.

Chicago-stil citat

Barnes, Peter, och Peter Barnes. Who Owns the Sky?: Our Common Assets and the Future of Capitalism. Washington, DC: Island Press, 2001.

MLA-referens

Barnes, Peter, och Peter Barnes. Who Owns the Sky?: Our Common Assets and the Future of Capitalism. Washington, DC: Island Press, 2001.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.