APA (7th ed.) Citation

Drury, P., & McPherson, A. (2008). Conservation principles: Policies and guidance for the sustainable management of the historic environment. English Heritage.

Chicago Style (17th ed.) Citation

Drury, Paul, and Anna McPherson. Conservation Principles: Policies and Guidance for the Sustainable Management of the Historic Environment. London: English Heritage, 2008.

MLA (9th ed.) Citation

Drury, Paul, and Anna McPherson. Conservation Principles: Policies and Guidance for the Sustainable Management of the Historic Environment. English Heritage, 2008.