Howson, P. (2019). The First World War Diaries of the Rt. Rev. Llewellyn Gwynne, July 1915-July 1916. Boydell & Brewer, Incorporated.
Lua i Stíl Chicago (17ú heag.)Howson, Peter. The First World War Diaries of the Rt. Rev. Llewellyn Gwynne, July 1915-July 1916. Melton: Boydell & Brewer, Incorporated, 2019.
Lua MLA (9ú heag.)Howson, Peter. The First World War Diaries of the Rt. Rev. Llewellyn Gwynne, July 1915-July 1916. Boydell & Brewer, Incorporated, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.