एपीए उद्धरण

Lewis, W. A. (1970). Tropical development 1880-1913. George Allen & Unwin Ltd.

शिकागो स्टाइल उद्धरण

Lewis, W. Arthur. Tropical Development 1880-1913. London: George Allen & Unwin Ltd, 1970.

एमएलए उद्धरण

Lewis, W. Arthur. Tropical Development 1880-1913. George Allen & Unwin Ltd, 1970.