1. Engineering Properties of Rocks;Farmer,1968
2. Suggested methods for determining the slaking, swelling, porosity, density and related rock index properties;Franklin,1970
3. The slake durability test;Franklin;Int. J. Rock Mech. Min. Sci.,1972
4. Working party report on the logging of cores for engineering purposes;Q. J. Eng. Geol.,1970
5. The engineering geology of Chalk;Higginbottom,1965