Lebergott, Stanley. Manpower in economic growth; the American record since 1800. - New York, McGraw-Hill [1964] - xii, 561 p. diagrs., tables. 24 cm. - Economics handbook series . Bibliographical footnotes. Subjects--Topical Terms: Manpower--History.--United StatesLabor economics. Dewey Class. No.: 331.1250973 / LEM 1964