United States. Agricultural Research Service. Human Nutrition Research Division. Apples in Appealing Ways [1969].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited States. Agricultural Research Service. Human Nutrition Research Division. Apples in Appealing Ways [1969].
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited States. Agricultural Research Service. Human Nutrition Research Division. Apples in Appealing Ways [1969].
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