Ert. (1981). Ert 's fashion designs: 218 illustrations from"harpers bazaar," 1918-1932. Dover Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रErt. Ert 'S Fashion Designs: 218 Illustrations From"harpers Bazaar," 1918-1932. New York: Dover Publications, 1981.
एमएलए (9वां संस्करण) प्रशस्ति पत्रErt. Ert 'S Fashion Designs: 218 Illustrations From"harpers Bazaar," 1918-1932. Dover Publications, 1981.
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