Duiker, William J., 1932- World history / William J. Duiker, Jackson J. Spielvogel. - 2nd ed. - Belmont, CA : West/Wadsworth, c1998. - xxxi, 1220, 56 p. : ill. (some col.), col. maps ; 27 cm. ISBN: 0534531210 LCCN: 97040042 LC Class. No.: D20 .D92 1998 / .D92 1998 Dewey Class. No.: 909