Instructor's manual to accompany Irwin Unger's These United States the questions of our past - McClymer, John F.; Moynihan, Kenneth J.; Branson, Margaret; Brockway, Ronald S.; Deaton, Thomas M.; Johnston, Douglas; Unger, Irwin 1927- (Boston : Little, Brown and Company, 1978)
Keywords: ESTADOS UNIDOS -- HISTORIA -- MANUALES