Não informado. (2012). Purdue Agricultures Magazine. Purdue University, College of Agriculture.
Lua i Stíl Chicago (17ú heag.)Não informado. Purdue Agricultures Magazine. West Lafayette, Ind: Purdue University, College of Agriculture, 2012.
Lua MLA (8ú heag.)Não informado. Purdue Agricultures Magazine. Purdue University, College of Agriculture, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.