Não informado. (1925). Bimonthly bulletin of the Ohio Agricultural Experiment Station. Ohio Agricultural Experiment Station.
Chicago-referens (17:e uppl.)Não informado. Bimonthly Bulletin of the Ohio Agricultural Experiment Station. Wooster, Ohio: Ohio Agricultural Experiment Station, 1925.
MLA-referens (8:e uppl.)Não informado. Bimonthly Bulletin of the Ohio Agricultural Experiment Station. Ohio Agricultural Experiment Station, 1925.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.