Não informado. (1862). Report of the Commissioner of Agriculture. U.S. Department of Agriculture.
Chicago-referens (17:e uppl.)Não informado. Report of the Commissioner of Agriculture. Washington: U.S. Department of Agriculture, 1862.
MLA-referens (8:e uppl.)Não informado. Report of the Commissioner of Agriculture. U.S. Department of Agriculture, 1862.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.