Não informado. (1942). Agriculture Decisions. U.S. Department of Agriculture.
Lua i Stíl Chicago (17ú heag.)Não informado. Agriculture Decisions. Washington: U.S. Department of Agriculture, 1942.
Lua MLA (8ú heag.)Não informado. Agriculture Decisions. U.S. Department of Agriculture, 1942.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.