APA (7th ed.) Citation

English Heritage, McCaig, I., & Ridout, B. (2012). Practical building conservation. Ashgate.

Chicago Style (17th ed.) Citation

English Heritage, Iain McCaig, and Brian Ridout. Practical Building Conservation. Farnham: Ashgate, 2012.

MLA (8th ed.) Citation

English Heritage, et al. Practical Building Conservation. Ashgate, 2012.