"Dixon, R. (1976). "The Hague Congress of the first international,September 2-7,1872": Minutes and documents. Progress pub.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Dixon, Richard. "The Hague Congress of the First International,September 2-7,1872": Minutes and Documents. Progress pub, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Dixon, Richard. "The Hague Congress of the First International,September 2-7,1872": Minutes and Documents. Progress pub, 1976.
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