Franklin

MLA

Swan, P. M, and John William Humphrey. An Historical Commentary On Cassius Dio's Roman History. Atlanta, Ga.: Scholars Press, 1988.

APA

Swan, P. M, & Humphrey, J. William. (1988). An Historical commentary on Cassius Dio's Roman history. Atlanta, Ga.: Scholars Press.

Chicago

Swan, P. M., and John William Humphrey. An Historical Commentary On Cassius Dio's Roman History. Atlanta, Ga.: Scholars Press, 1988.