National Book League, London. (1968). T.U.C. centenary 1868-1968: Books reflecting the social changes of the last century.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational Book League, London. T.U.C. Centenary 1868-1968: Books Reflecting the Social Changes of the Last Century. London, 1968.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNational Book League, London. T.U.C. Centenary 1868-1968: Books Reflecting the Social Changes of the Last Century. 1968.
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