The commentaries of Caesar :
tr. into English ; to which is prefixed a discourse concerning the Roman art of war /
by William Duncan.

APA Citation

Caesar, J., Duncan, W., Hirtius, A. (1806). The commentaries of Caesar: tr. into English ; to which is prefixed a discourse concerning the Roman art of war. London: Cuthell and Martin.

MLA Citation

Caesar, Julius, William Duncan, and Aulus Hirtius. The Commentaries of Caesar: Tr. Into English ; to Which Is Prefixed a Discourse Concerning the Roman Art of War. London: Cuthell and Martin, 1806.

Warning: These citations may not always be complete (especially for serials).