Não informado. (1947). School food service journal. American School Food Service Association.
Chicago-Zitierstil (17. Ausg.)Não informado. School Food Service Journal. Alexandria, Va: American School Food Service Association, 1947.
MLA-Zitierstil (8. Ausg.)Não informado. School Food Service Journal. American School Food Service Association, 1947.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.