University of Tennessee (Knoxville campus). Agricultural Extension Service. Tennessee farm news. Division of Extension, University of Tennessee.
Chicago-referens (17:e uppl.)University of Tennessee (Knoxville campus). Agricultural Extension Service. Tennessee Farm News. Knoxville, TN: Division of Extension, University of Tennessee.
MLA-referens (8:e uppl.)University of Tennessee (Knoxville campus). Agricultural Extension Service. Tennessee Farm News. Division of Extension, University of Tennessee.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.