World's Columbian Exposition Chicago, Ill. (1893). Guide through the exhibition of the German chemical industry. J. Sittenfeld.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWorld's Columbian Exposition Chicago, Ill. Guide Through the Exhibition of the German Chemical Industry. Berlin: J. Sittenfeld, 1893.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWorld's Columbian Exposition Chicago, Ill. Guide Through the Exhibition of the German Chemical Industry. J. Sittenfeld, 1893.
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