Witham. Picasso and the Chess Player. University Press of New England.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWitham. Picasso and the Chess Player. University Press of New England.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWitham. Picasso and the Chess Player. University Press of New England.
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