Ohio State University. Department of Agricultural Economics and Rural Sociology & Ohio Agricultural Research and Development Center. Economics and sociology occasional paper. Agricultural Economics and Rural Sociology, Ohio State University : Ohio Agricultural Research and Development Center.
Lua i Stíl Chicago (17ú heag.)Ohio State University. Department of Agricultural Economics and Rural Sociology agus Ohio Agricultural Research and Development Center. Economics and Sociology Occasional Paper. Columbus, Ohio: Agricultural Economics and Rural Sociology, Ohio State University : Ohio Agricultural Research and Development Center.
Lua MLA (8ú heag.)Ohio State University. Department of Agricultural Economics and Rural Sociology agus Ohio Agricultural Research and Development Center. Economics and Sociology Occasional Paper. Agricultural Economics and Rural Sociology, Ohio State University : Ohio Agricultural Research and Development Center.