http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
geology of parts of Northamptonshire and Warwickshire
by William Talbot Aveline. Lists of fossils, by R. Etheridge. Publised by order of the lords commissioners of Her Majesty's Treasury.
Memoirs of the Geological Survey of Great Britain