Hugel, F. V. (1964). Selected writings; comp. by P. Franklin Chambers. Fontana Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHugel, Friedrich Von. Selected Writings; Comp. by P. Franklin Chambers. Fontana Books, 1964.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHugel, Friedrich Von. Selected Writings; Comp. by P. Franklin Chambers. Fontana Books, 1964.
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