@book{25044,
	author = {Munn, Malcolm John, and Geological Survey (U.S.)},
	title = {Geology of the oil and gas fields in Sewickley quadrangle,},
	publisher = {C. E. Aughinbaugh, printer to the stae of Pennsylvania,},
	year = {1910.},
	series = {Pennsylvania. Topographic and geologic survey. Report},
	address = {Harrisburg,},
	note = {"Introduction, by I. C. White": p. 13-23.}
}