Não informado. (1947). School food service journal. American School Food Service Association.
Citação do estilo Chicago (17ª ed.)Não informado. School Food Service Journal. Alexandria, Va: American School Food Service Association, 1947.
Citação MLA (8ª ed.)Não informado. School Food Service Journal. American School Food Service Association, 1947.
警告：这些引文格式不一定是100％准确.