Não informado. (2000). Technical bulletin. Oklahoma Agricultural Experiment Station.
Lua i Stíl Chicago (17ú heag.)Não informado. Technical Bulletin. Stillwater, Okla: Oklahoma Agricultural Experiment Station, 2000.
Lua MLA (8ú heag.)Não informado. Technical Bulletin. Oklahoma Agricultural Experiment Station, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.