Gottschalk,Louis, Mackinney , L. C., & Pritchard, E. H. (1969). History of mankind: Cultural and scientific development. The International Commission for a History of the Scientific and Cultural Development of Mankind by George Allen and Unwin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGottschalk,Louis, Loren C. Mackinney , और Earl H. Pritchard. History of Mankind: Cultural and Scientific Development. The International Commission for a History of the Scientific and Cultural Development of Mankind by George Allen and Unwin, 1969.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGottschalk,Louis, et al. History of Mankind: Cultural and Scientific Development. The International Commission for a History of the Scientific and Cultural Development of Mankind by George Allen and Unwin, 1969.
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