एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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