एपीए उद्धरण

Roberts, P. (2004). End of oil: The decline of the petroleum economy and the rise of a new energy order. Bloomsbury.

शिकागो स्टाइल उद्धरण

Roberts, Paul. End of Oil: The Decline of the Petroleum Economy and the Rise of a New Energy Order. Great Britain: Bloomsbury, 2004.

एमएलए उद्धरण

Roberts, Paul. End of Oil: The Decline of the Petroleum Economy and the Rise of a New Energy Order. Bloomsbury, 2004.