APA (7th ed.) Citation

National Library of Wales, ebrary, Inc, & Roberts, S. E. (2011). Llawysgrif pomffred: An edition and study of Peniarth MS 259B. Brill.

Chicago Style (17th ed.) Citation

National Library of Wales, Inc ebrary, and Sara Elin Roberts. Llawysgrif Pomffred: An Edition and Study of Peniarth MS 259B. Boston: Brill, 2011.

MLA (9th ed.) Citation

National Library of Wales, et al. Llawysgrif Pomffred: An Edition and Study of Peniarth MS 259B. Brill, 2011.