एपीए उद्धरण

Reference Division Central Office of Information. (1974). Steel. London: Her Majesty's Stationery Office.

शिकागो स्टाइल उद्धरण

Reference Division Central Office of Information. Steel. London: Her Majesty's Stationery Office, 1974.

एमएलए उद्धरण

Reference Division Central Office of Information. Steel. London: Her Majesty's Stationery Office, 1974.