Não informado. (2001). Annual report of the Ohio Agricultural Experiment Station. Ohio Agricultural Experiment Station.
Chicago-referens (17:e uppl.)Não informado. Annual Report of the Ohio Agricultural Experiment Station. Wooster, Ohio: Ohio Agricultural Experiment Station, 2001.
MLA-referens (8:e uppl.)Não informado. Annual Report of the Ohio Agricultural Experiment Station. Ohio Agricultural Experiment Station, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.