@book{81576,
	author = {Tayyab Ali, S. and Calkins, James Alfred,},
	title = {Mineral deposits of the southern part of the Hazara District, West Pakistan,},
	publisher = {Director General, Geological Survey of Pakistan,},
	year = {1964.},
	series = {Records of the Geological Survey of Pakistan, v. 13, pt. 1},
	address = {[Karachi]}
}