Não informado. (1966). Research Paper NC. North Central Forest Experiment Station.
Lua i Stíl Chicago (17ú heag.)Não informado. Research Paper NC. Saint Paul, Minn: North Central Forest Experiment Station, 1966.
Lua MLA (8ú heag.)Não informado. Research Paper NC. North Central Forest Experiment Station, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.