Melnick, R. (2018). Life and Work of Ludwig Lewisohn, Volume II: "This Dark and Desperate Age". Wayne State University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMelnick, Ralph. Life and Work of Ludwig Lewisohn, Volume II: "This Dark and Desperate Age". Wayne State University Press, 2018.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMelnick, Ralph. Life and Work of Ludwig Lewisohn, Volume II: "This Dark and Desperate Age". Wayne State University Press, 2018.
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