@book{27192,
	author = {Welch, F. B. A. and Crookall, Robert, and Geological Survey of Great Britain.},
	title = {British regional geology:},
	publisher = {H.M. Stationery Off.,},
	year = {1935.},
	address = {London,},
	note = {At head of title: Dept. of scientific and industrial research. Geological survey and Museum.}
}