एपीए उद्धरण

Duijn, J. J. V. (1983). The long wave in economic life. London: George Allen & Unwin.

शिकागो स्टाइल उद्धरण

Duijn, J. J. Van. The Long Wave in Economic Life. London: George Allen & Unwin, 1983.

एमएलए उद्धरण

Duijn, J. J. Van. The Long Wave in Economic Life. London: George Allen & Unwin, 1983.