APA استشهاد

Youngson, A. (1972). Economic development in the long run. Allen & Unwin.

استشهاد بنمط شيكاغو

Youngson, A.G. Economic Development in the Long Run. London: Allen & Unwin, 1972.

MLA استشهاد

Youngson, A.G. Economic Development in the Long Run. Allen & Unwin, 1972.