Não informado. (2018). Report of the Chief of the Weather Bureau. U.S. Department of Agriculture.
Chicago-referens (17:e uppl.)Não informado. Report of the Chief of the Weather Bureau. Washington: U.S. Department of Agriculture, 2018.
MLA-referens (8:e uppl.)Não informado. Report of the Chief of the Weather Bureau. U.S. Department of Agriculture, 2018.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.