Unger, Irwin These United States vol. I : the questions of our past / Irwin Unger, with the assistance of Debi Unger. - 2nd ed. - Boston : Little, Brown, c1982. - xix, 436,lx. p.: table, figs., map ill. (some col.) ; 24 cm. Includes bibliographical references and index v. 1. To 1877 -- v. 2. Since 1865. ISBN: 0316887625 (v. 1 : pbk.) LCCN: 81083165 Subjects--Geographic Terms: United States--History. LC Class. No.: E178.1 / .U54 1982 Dewey Class. No.: 973/UNU