एपीए उद्धरण

Youngson, A. J. (1972). Economic development in the long run. London: Allen and Unwin.

शिकागो स्टाइल उद्धरण

Youngson, A. J. Economic Development in the Long Run. London: Allen and Unwin, 1972.

एमएलए उद्धरण

Youngson, A. J. Economic Development in the Long Run. London: Allen and Unwin, 1972.