@book{55504,
	author = {Perkins, Dexter and Van Deusen, Glyndon G},
	title = {United States of America},
	publisher = {Macmillan},
	year = {1962},
	address = {New York},
	note = {Content: V.1. to 1876 -V.2. 1865 to the present}
}