Marshall, A. (1930). The pure theory of foreign trade. The pure theory of domestic values. London School of Economics and Political Science.
Lua i Stíl Chicago (17ú heag.)Marshall, Alfred. The Pure Theory of Foreign Trade. The Pure Theory of Domestic Values. London: London School of Economics and Political Science, 1930.
Lua MLA (9ú heag.)Marshall, Alfred. The Pure Theory of Foreign Trade. The Pure Theory of Domestic Values. London School of Economics and Political Science, 1930.
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