@book{22490,
	author = {Walter, M. J.},
	title = {The geology of the Selima-Mvera Mission area /},
	publisher = {Govt. Printer,},
	year = {1972.},
	series = {Bulletin - Malawi, Geological Survey Dept. ; no. 30},
	address = {Zomba, Malawi :}
}