1. Encyclopædia of architecture;Nicholson,1852
2. The history of hollow bricks;Hamilton;Trans Br Ceram Soc,1958
3. Hints on an improved method of building. London (England);Dearn,1821
4. An encyclopaedia of architecture: historical, theoretical and practical. London (England);Gwilt,1888
5. Wall ties;McKenzie,2001