एपीए उद्धरण

Lewis, W. A. (1966). Development Planning: Essentials of Economic Policy. Allen & Unwin.

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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