United States. Department of State. (1948). Economic cooperation series. [s.n.].
Cita Chicago (17th ed.)United States. Department of State. Economic Cooperation Series. Washington: [s.n.], 1948.
Cita MLA (9th ed.)United States. Department of State. Economic Cooperation Series. [s.n.], 1948.
Atenció: Aquestes cites poden no estar 100% correctes.