Bowersock, G. W., Brown, P., GRABAR, O., Bowersock, G. W. 1., Brown, P. R. L., Grabar, O., & Bowersock, G. W. (1999). Late antiquity: A guide to the postclassical world. Cambridge, Mass. London, England: The Belknap Press of Harvard University Press.

Bowersock, Glen Warren, Peter Brown, Oleg GRABAR, G. W. 1936- Bowersock, Peter Robert Lamont Brown, Oleg Grabar, and Glen W. Bowersock. Late Antiquity: A Guide to the Postclassical World. Cambridge, Mass. London, England: The Belknap Press of Harvard University Press, 1999.

Bowersock, Glen Warren, et al. Late Antiquity: A Guide to the Postclassical World. Cambridge, Mass. London, England: The Belknap Press of Harvard University Press, 1999.