एपीए उद्धरण

Lewis,W Arthur. (1966). Development planning: Essentials of economic policy. George Allen & Unwin.

शिकागो स्टाइल उद्धरण

Lewis,W Arthur. Development Planning: Essentials of Economic Policy. London: George Allen & Unwin, 1966.

एमएलए उद्धरण

Lewis,W Arthur. Development Planning: Essentials of Economic Policy. George Allen & Unwin, 1966.