Cita APA (7th ed.)
Collins, D. (2009). Portfolios of the poor: How the world's poor live on $2 a day. Princeton University Press.
Cita Chicago (17th ed.)
Collins, Daryl. Portfolios of the Poor: How the World's Poor Live on $2 a Day. Princeton: Princeton University Press, 2009.
Cita MLA (9th ed.)
Collins, Daryl. Portfolios of the Poor: How the World's Poor Live on $2 a Day. Princeton University Press, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.