University of Minnesota. Farm Management Group. (1924). Minnesota farm management service notes. The Group.
Chicago-referens (17:e uppl.)University of Minnesota. Farm Management Group. Minnesota Farm Management Service Notes. St. Paul, Minn.: The Group, 1924.
MLA-referens (8:e uppl.)University of Minnesota. Farm Management Group. Minnesota Farm Management Service Notes. The Group, 1924.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.