Não informado. (1958). North Dakota Farm Research. North Dakota Agricultural Experiment Station.
Lua i Stíl Chicago (17ú heag.)Não informado. North Dakota Farm Research. Fargo, ND: North Dakota Agricultural Experiment Station, 1958.
Lua MLA (8ú heag.)Não informado. North Dakota Farm Research. North Dakota Agricultural Experiment Station, 1958.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.