Davey, N. (1976). Building stones of England and Wales. Bedford Square Press.
Cita Chicago Style (17a ed.)Davey, Norman. Building Stones of England and Wales. London: Bedford Square Press, 1976.
Cita MLA (9a ed.)Davey, Norman. Building Stones of England and Wales. Bedford Square Press, 1976.
Precaución: Estas citas no son 100% exactas.