Não informado. (2001). Technical bulletin. North Carolina Agricultural Experiment Station.
Lua i Stíl Chicago (17ú heag.)Não informado. Technical Bulletin. Raleigh, NC: North Carolina Agricultural Experiment Station, 2001.
Lua MLA (8ú heag.)Não informado. Technical Bulletin. North Carolina Agricultural Experiment Station, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.