Não informado. (1942). Foreign agriculture report. U.S. Department of Agriculture, Foreign Agricultural Service.
Chicago-referens (17:e uppl.)Não informado. Foreign Agriculture Report. Washington: U.S. Department of Agriculture, Foreign Agricultural Service, 1942.
MLA-referens (8:e uppl.)Não informado. Foreign Agriculture Report. U.S. Department of Agriculture, Foreign Agricultural Service, 1942.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.