Não informado. (1947). School food service journal. American School Food Service Association.
Chicago-referens (17:e uppl.)Não informado. School Food Service Journal. Alexandria, Va: American School Food Service Association, 1947.
MLA-referens (8:e uppl.)Não informado. School Food Service Journal. American School Food Service Association, 1947.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.