@book{29539,
	author = {Hack, John T. and Goodlett, John C.},
	title = {Geomorphology and forest ecology of  mountain region in the central Appalachians,},
	publisher = {U. S. Govt. Print. Off.,},
	year = {1960.},
	series = {United States. Geological Survey. Professional paper},
	address = {Washington,},
	note = {"Prepared in cooperation with the Harvard Forest, Harvard University."}
}