@book{29673,
	author = {Geological Survey of Great Britain. and Morris, Margaret O. and Museum of Practical Geology (Great Britain)},
	title = {Classified geological photographs,},
	publisher = {H.M. Stationery Off.,},
	year = {1963.},
	address = {London,},
	edition = {3d ed.},
	note = {At head of title:  Dept. of Scientific & Industrial Research.}
}