Não informado. (1969). Foreign economic trends and their implications for the United States. U.S. Department of Commerce.
Lua i Stíl Chicago (17ú heag.)Não informado. Foreign Economic Trends and Their Implications for the United States. Washington: U.S. Department of Commerce, 1969.
Lua MLA (8ú heag.)Não informado. Foreign Economic Trends and Their Implications for the United States. U.S. Department of Commerce, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.