Mill, J. S. (2001). The Principles of political economy. Batoche.
Lua i Stíl Chicago (17ú heag.)Mill, John Stuart. The Principles of Political Economy. Kitchener, Ont.: Batoche, 2001.
Lua MLA (9ú heag.)Mill, John Stuart. The Principles of Political Economy. Batoche, 2001.
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