Ohio State University. Department of Rural Economics and Rural Sociology & Ohio Agricultural Experiment Station. (1941). Mimeograph bulletin. Ohio State University and Ohio Agricultural Experiment Station.
Lua i Stíl Chicago (17ú heag.)Ohio State University. Department of Rural Economics and Rural Sociology agus Ohio Agricultural Experiment Station. Mimeograph Bulletin. Columbus, Ohio: Ohio State University and Ohio Agricultural Experiment Station, 1941.
Lua MLA (8ú heag.)Ohio State University. Department of Rural Economics and Rural Sociology agus Ohio Agricultural Experiment Station. Mimeograph Bulletin. Ohio State University and Ohio Agricultural Experiment Station, 1941.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.