@book{241552,
	author = {Unger, Irwin. and Unger, Debi.},
	title = {These United States},
	publisher = {Prentice Hall},
	year = {c1986.},
	address = {New Jersey},
	edition = {2nd ed.},
	note = {Vol. 1: Family histories by Maury Klein and Joel C. Mickelson; v. 2: by Maury Klein and James C. Foster.}
}