Kagan, D. (1966). Decline and fall of the Roman Empire: Why did it collapse? D. C. Heath and Company.
Cita Chicago Style (17a ed.)Kagan, Donald. Decline and Fall of the Roman Empire: Why Did It Collapse? Boston: D. C. Heath and Company, 1966.
Cita MLA (9a ed.)Kagan, Donald. Decline and Fall of the Roman Empire: Why Did It Collapse? D. C. Heath and Company, 1966.
Precaución: Estas citas no son 100% exactas.