Columbia subject headings:
Rome--History--Civil War, 68-69.
Tacitus, Cornelius. Historiae. Liber 1-2.
Harvard subject headings:
Rome--History--Civil War, 68-69.
Tacitus, Cornelius. Historiae. Book 1-2.
Princeton subject headings:
Rome--History--Civil War, 68-69.
Tacitus, Cornelius. Historiae. Books I and II.