@book{26203,
	author = {Wagner, Percy Albert.},
	title = {The Pretoria salt-pan,},
	publisher = {The Government Printing and Stationery Office,},
	year = {1922.},
	series = {South Africa. Geological Survey. Memoir},
	address = {Pretoria,},
	note = {At head of title: Union of South Africa. Department of mines and industries.}
}