Cowper, Marcus. History book : an interactive journey / Marcus Cowper. - Washington, D.C. : National Geographic Society, 2010. - 184 pages : colored illustrations ; 29 cm. Includes index. ISBN: 978-1-4262-0679-5 HB, Bp. Subjects--Topical Terms: World history.World history,--Sources. LC Class. No.: D 20 C68 2010 LC Lib