Hyman, Harold M A more perfect Union : The impact of the Civil War and Reconstruction on the Constitution - New York Alfred A Knopf 1973 - 562 p ISBN: 0394467078 Subjects--Chronological Terms: 1870 Subjects--Topical Terms: HISTORIA ESTADOUNIDENSECONSTITUCIONESHISTORIA MILITARHISTORIA POLITICA Subjects--Geographic Terms: ESTADOS UNIDOS