एपीए उद्धरण

Allen, P. W. (1972). Natural Rubber and the Synthetics. Crosby Lockwood.

शिकागो स्टाइल उद्धरण

Allen, P W. Natural Rubber and the Synthetics. London: Crosby Lockwood, 1972.

एमएलए उद्धरण

Allen, P W. Natural Rubber and the Synthetics. Crosby Lockwood, 1972.