Não informado. (1962). Foreign Agricultural Trade of the United States. U.S. Department of Agriculture, Economic Research Service.
Lua i Stíl Chicago (17ú heag.)Não informado. Foreign Agricultural Trade of the United States. Washington: U.S. Department of Agriculture, Economic Research Service, 1962.
Lua MLA (8ú heag.)Não informado. Foreign Agricultural Trade of the United States. U.S. Department of Agriculture, Economic Research Service, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.