Não informado. (1914). Annual report of the Iowa Agricultural Experiment Station. Iowa State College of Agriculture and Mechanic Arts.
Lua i Stíl Chicago (17ú heag.)Não informado. Annual Report of the Iowa Agricultural Experiment Station. Ames, Iowa: Iowa State College of Agriculture and Mechanic Arts, 1914.
Lua MLA (8ú heag.)Não informado. Annual Report of the Iowa Agricultural Experiment Station. Iowa State College of Agriculture and Mechanic Arts, 1914.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.