Pollard, A. F Factors in American history by A. F. Pollard - New York The Macmillan company 1925 - vi p., 1 l.,315 p. front. (fold. map) 19 1/2 cm ISBN: 9780521103404 ISSN: 25017033 Subjects--Topical Terms: United States - History Dewey Class. No.: 973 POL