APA (7th ed.) Citation

Pettifer, A. (2000). Welsh castles: A guide by counties. Boydell Press.

Chicago Style (17th ed.) Citation

Pettifer, Adrian. Welsh Castles: A Guide by Counties. Woodbridge [England] ; Rochester, NY: Boydell Press, 2000.

MLA (9th ed.) Citation

Pettifer, Adrian. Welsh Castles: A Guide by Counties. Boydell Press, 2000.