Não informado. (1952). Forestry Research Notes. University of Wisconsin, College of Agricultural and Life Sciences, Extension Forestry Office.
Lua i Stíl Chicago (17ú heag.)Não informado. Forestry Research Notes. Madison, Wis: University of Wisconsin, College of Agricultural and Life Sciences, Extension Forestry Office, 1952.
Lua MLA (8ú heag.)Não informado. Forestry Research Notes. University of Wisconsin, College of Agricultural and Life Sciences, Extension Forestry Office, 1952.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.