एपीए उद्धरण

Alexander, W. (1951). Metals in the service of man. London: Penguin Books.

शिकागो स्टाइल उद्धरण

Alexander, W. Metals in the Service of Man. London: Penguin Books, 1951.

एमएलए उद्धरण

Alexander, W. Metals in the Service of Man. London: Penguin Books, 1951.