Sen, A. (2017). Collective choice and social welfare expanded edition. Penguin Books.
Lua i Stíl Chicago (17ú heag.)Sen, Amartya. Collective Choice and Social Welfare Expanded Edition. UK: Penguin Books, 2017.
Lua MLA (9ú heag.)Sen, Amartya. Collective Choice and Social Welfare Expanded Edition. Penguin Books, 2017.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.