author = { Heathcote, Chris Naylor, Peter J. },

title = { Coal mining in the hamlets of Beard and Bugsworth in Northwest Derbyshire },

publisher = {Peak District Mines Historical Society},

year = {2008},

booktitle = {Mining history ; 17,1},

address = { Derbyshire },

url = { http://slubdd.de/katalog?TN_libero_mab2 }