Horobin, S. (2020). John But and the ending of the a version of Piers Plowman. Brepols Publishers.
Lua i Stíl Chicago (17ú heag.)Horobin, S. John But and the Ending of the a Version of Piers Plowman. Brepols Publishers, 2020.
Lua MLA (9ú heag.)Horobin, S. John But and the Ending of the a Version of Piers Plowman. Brepols Publishers, 2020.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.