United States. Agricultural Research Service. Human Nutrition Research Division. Apples in Appealing Ways [1969].
芝加哥风格引文United States. Agricultural Research Service. Human Nutrition Research Division. Apples in Appealing Ways [1969].
MLA引文United States. Agricultural Research Service. Human Nutrition Research Division. Apples in Appealing Ways [1969].
警告：这些引文格式不一定是100％准确.