Dyfyniad APA

United States. Department of State. (1948). Economic cooperation series. [s.n.].

Dyfyniad Arddull Chicago

United States. Department of State. Economic Cooperation Series. Washington: [s.n.], 1948.

Dyfyniad MLA

United States. Department of State. Economic Cooperation Series. [s.n.], 1948.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.