The Abridged English metrical Brut :
edited from London, British Library MS Royal 12 C.XII /
by Una O'Farrell-Tate.

APA Citation

Layamon, a. 1200., O'Farrell-Tate, U. (2002). The Abridged English metrical Brut: edited from London, British Library MS Royal 12 C.XII. Heidelberg: C. Winter.

MLA Citation

Layamon, active 1200, and Una O'Farrell-Tate. The Abridged English Metrical Brut: Edited From London, British Library MS Royal 12 C.XII. Heidelberg: C. Winter, 2002.

Warning: These citations may not always be complete (especially for serials).