APA (7th ed.) Citation

Gildas Sapiens 504-570 & Winterbottom, M. (2002). The ruin of Britain and other documents (First published in 1978.). Phillimore.

Chicago Style (17th ed.) Citation

Gildas Sapiens 504-570 and Michael Winterbottom. The Ruin of Britain and Other Documents. First published in 1978. London [u.a.]: Phillimore, 2002.

MLA (9th ed.) Citation

Gildas Sapiens 504-570 and Michael Winterbottom. The Ruin of Britain and Other Documents. First published in 1978. Phillimore, 2002.