Não informado. (2018). Research Summary. Ohio Agricultural Research and Development Center.
Chicago-referens (17:e uppl.)Não informado. Research Summary. Wooster, Ohio: Ohio Agricultural Research and Development Center, 2018.
MLA-referens (8:e uppl.)Não informado. Research Summary. Ohio Agricultural Research and Development Center, 2018.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.