@book{28137,
	author = {Söhnge, A. P. G. and South Africa.},
	title = {The geology of the Messina copper mines and surrounding country /},
	publisher = {Govt. Printer,},
	year = {1946.},
	series = {Geological Survey memoir ;},
	address = {Pretoria :},
	note = {At head of title: Union of South Africa. Dept. of Mines.}
}