@book{25277,
	author = {Gibson, Walcot,},
	title = {The concealed coalfield of Yorkshire and Nottinghamshire,},
	publisher = {Printed for H.M. Stationery off., by Darling & son. ltd.,},
	year = {1913.},
	series = {[Gt. Brit. Geological survey] Memoirs of the Geological survey, England and Wales},
	address = {London,},
	note = {Published by order of the lords commissioners of His Majesty's treasury.}
}