Youngdahl. Working on the Railroad, Walking in Beauty. Utah State University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रYoungdahl. Working on the Railroad, Walking in Beauty. Utah State University Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रYoungdahl. Working on the Railroad, Walking in Beauty. Utah State University Press.
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