(1957). Special report. Agricultural and Home Economics Experiment Station.
Lua i Stíl Chicago (17ú heag.)Special Report. Ames: Agricultural and Home Economics Experiment Station, 1957.
Lua MLA (8ú heag.)Special Report. Agricultural and Home Economics Experiment Station, 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.