Text ( visual ) : unmediated Atlas of twentieth century world history / Michael Dockrill. -- 1st. U.S. ed. -- New York : HarperCollins , c1991. -- 160 p. : col. ill., col. maps, ports. ; 26 cm. -- Bibliography: p. 156 ; Includes index ; "An Ilex Book"--t.p.verso. -- ISBN 0060551690 ; (BA20078219) ; https://ci.nii.ac.jp/ncid/BA20078219 Author Heading(s): Dockrill, M. L. (Michael L.). -- Classification(s): LCC : D394 ; DC20 : 909.82. -- Subject Heading(s): LCSH : History, Modern -- 19th century -- Sources ; LCSH : History, Modern -- 20th century -- Sources