Não informado. (1926). United States egg and poultry magazine. Institute of American Poultry Industries.
Chicago-referens (17:e uppl.)Não informado. United States Egg and Poultry Magazine. Mount Morris, Ill: Institute of American Poultry Industries, 1926.
MLA-referens (8:e uppl.)Não informado. United States Egg and Poultry Magazine. Institute of American Poultry Industries, 1926.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.