Não informado. (1888). Bulletin of the Ohio Agricultural Experiment Station. Ohio Agricultural Experiment Station.
Chicago-referens (17:e uppl.)Não informado. Bulletin of the Ohio Agricultural Experiment Station. Wooster, Ohio: Ohio Agricultural Experiment Station, 1888.
MLA-referens (8:e uppl.)Não informado. Bulletin of the Ohio Agricultural Experiment Station. Ohio Agricultural Experiment Station, 1888.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.