Não informado. (1957). Home Economics Research Reports. U.S. Department of Agriculture.
Chicago-referens (17:e uppl.)Não informado. Home Economics Research Reports. Washington: U.S. Department of Agriculture, 1957.
MLA-referens (8:e uppl.)Não informado. Home Economics Research Reports. U.S. Department of Agriculture, 1957.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.