Sottas, E. (1985). The least developed countries: An introduction to the LCDs and to the substantial new programme of action for them. United Nations.
Cita Chicago (17th ed.)Sottas, Eric. The Least Developed Countries: An Introduction to the LCDs and to the Substantial New Programme of Action for Them. New York, N. Y: United Nations, 1985.
Cita MLA (9th ed.)Sottas, Eric. The Least Developed Countries: An Introduction to the LCDs and to the Substantial New Programme of Action for Them. United Nations, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.