Keay, J. (2000). History: From the earliest civilizations to the boom of the twenty-first century (NA.). Harper Press.
Chicago-čujuhus (17. p.)Keay, John. History: From the Earliest Civilizations to the Boom of the Twenty-first Century. NA. London: Harper Press, 2000.
MLA-čujuhus (9. p.)Keay, John. History: From the Earliest Civilizations to the Boom of the Twenty-first Century. NA. Harper Press, 2000.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.