Duiker, William J. The essential world history, volume II : since 1500 / William J. Duiker, Jackson J. Spielgovel. - 7th ed. - Australia : Wadsworth Cengage Learning, c2014. - 862 p. : co. ill. ; 26 cm. Includes index. ISBN: 9781133935797 Subjects--Personal Names: Spielgovel, Jackson. Subjects--Topical Terms: World history.