Cita APA (7a ed.)

Biggs, D. (2006). Three armies in Britain: The Irish campaign of Richard II and the usurpation of Henry IV, 1397-1399. Brill.

Cita Chicago Style (17a ed.)

Biggs, Douglas. Three Armies in Britain: The Irish Campaign of Richard II and the Usurpation of Henry IV, 1397-1399. Leiden: Brill, 2006.

Cita MLA (8a ed.)

Biggs, Douglas. Three Armies in Britain: The Irish Campaign of Richard II and the Usurpation of Henry IV, 1397-1399. Brill, 2006.