Cita APA (7th ed.)
(1990). World Development report 1990. Oxford University Press.
Cita Chicago (17th ed.)
World Development Report 1990. Washington: Oxford University Press, 1990.
Cita MLA (9th ed.)
World Development Report 1990. Oxford University Press, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.