Cita APA (7a ed.)

Collins, D. (2009). Portfolios of the poor: How the world's poor live on $2 a day. Princeton University Press.

Cita Chicago Style (17a ed.)

Collins, Daryl. Portfolios of the Poor: How the World's Poor Live on $2 a Day. Princeton, New Jersey: Princeton University Press, 2009.

Cita MLA (9a ed.)

Collins, Daryl. Portfolios of the Poor: How the World's Poor Live on $2 a Day. Princeton University Press, 2009.