@book{26471,
	author = {Wybergh, Wilfrid John,},
	title = {The economic geology of Sabie and Pilgrims Rest /},
	publisher = {Govt. Print. and Stationery Office,},
	year = {1925.},
	series = {Memoir ;},
	address = {Pretoria :},
	note = {At head of title: Union of South Africa. Department of Mines and Industries. Geological Survey.}
}