Mathieson, Andrew, (n.d.). Staple Edge Geology Teaching Trail. Nature Conservancy Council. In very good condition
Mathieson, Andrew, (n.d.). Staple Edge Geology Teaching Trail. Nature Conservancy Council. In very good condition. 24pp. PB booklet + 12pp blank student worksheets. In very good condition. The NCC was a government agency which existed from 1973-91.