Barnatt, John abd Worthington, Terry (2017); PDMHS (Peak District Mines Historical Society) 19-6 Spr - Quarrying Chert at Bakewell - A Detailed Archaeological Survey of Pretoria Mine and Observations on Holme Bank, Holme Hall and Endcliffe Mines; 119 pages (1-119)
Bowering, Gordon and Flindall, Roger (1998); PDMHS (Peak District Mines Historical Society) 13-5 Sum - Hard Times - A History of the Derbyshire Chert Industry; 31 pages (1-31)