Lua APA (7ú heag.)
Biggs, D. (2006). Three armies in Britain: The Irish campaign of Richard II and the usurpation of Henry IV, 1397-1399. Brill.
Lua i Stíl Chicago (17ú heag.)
Biggs, Douglas. Three Armies in Britain: The Irish Campaign of Richard II and the Usurpation of Henry IV, 1397-1399. Leiden: Brill, 2006.
Lua MLA (9ú heag.)
Biggs, Douglas. Three Armies in Britain: The Irish Campaign of Richard II and the Usurpation of Henry IV, 1397-1399. Brill, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.