Não informado. (1938). Agricultural Finance Review. U.S. Department of Agriculture, Economic Research Service.
Lua i Stíl Chicago (17ú heag.)Não informado. Agricultural Finance Review. Washington: U.S. Department of Agriculture, Economic Research Service, 1938.
Lua MLA (8ú heag.)Não informado. Agricultural Finance Review. U.S. Department of Agriculture, Economic Research Service, 1938.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.