APA ציטוט

Haberler, G. V. (1936). The theory of international trade. London: William Hodge.

Trích dẫn kiểu Chicago

Haberler, Gottfried Von. The Theory of International Trade. London: William Hodge, 1936.

ציטוט MLA

Haberler, Gottfried Von. The Theory of International Trade. London: William Hodge, 1936.