एपीए उद्धरण

Ball, P. (2001). Bright earth: The invention of colour. Penguin Books.

शिकागो स्टाइल उद्धरण

Ball, Philip. Bright Earth: The Invention of Colour. London: Penguin Books, 2001.

एमएलए उद्धरण

Ball, Philip. Bright Earth: The Invention of Colour. Penguin Books, 2001.