Sen Amartya. (2017). Collective Choice and Social Welfare. Penguin Books.
Lua i Stíl Chicago (17ú heag.)Sen Amartya. Collective Choice and Social Welfare. Penguin Books, 2017.
Lua MLA (9ú heag.)Sen Amartya. Collective Choice and Social Welfare. Penguin Books, 2017.
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