Collins, D. (2010). Portfolios of the poor: How the world's poor live on $ 2 a day. Princeton University Press ; Permanent Black.
Citace podle Chicago (17th ed.)Collins, Daryl. Portfolios of the Poor: How the World's Poor Live on $ 2 a Day. Princeton : Delhi: Princeton University Press ; Permanent Black, 2010.
Citace podle MLA (8th ed.)Collins, Daryl. Portfolios of the Poor: How the World's Poor Live on $ 2 a Day. Princeton University Press ; Permanent Black, 2010.
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