United Nations. Development Programme. (1999). Human development report 1999. Oxford University Press.
Cita Chicago (17th ed.)United Nations. Development Programme. Human Development Report 1999. New York ; Oxford: Oxford University Press, 1999.
Cita MLA (8th ed.)United Nations. Development Programme. Human Development Report 1999. Oxford University Press, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.