APA (7e ed.) Bronvermelding
Kagan, D. (1962). Decline and fall of the Roman Empire: why did it collapse?.: Why did it collapse? Heath.
Chicago (17e ed.) Bronvermelding
Kagan, Donald. Decline and Fall of the Roman Empire: Why Did It Collapse?.: Why Did It Collapse? Boston: Heath, 1962.
MLA (9e ed.) Bronvermelding
Kagan, Donald. Decline and Fall of the Roman Empire: Why Did It Collapse?.: Why Did It Collapse? Heath, 1962.
Let op: Deze citaties zijn niet altijd 100% accuraat.