books.google.com.pk - Noted teachers and scholars William J. Duiker and Jackson J. Spielvogel present a balanced, highly readable overview of world history that explores common challenges and experiences that unite the human past and that identify the key global patterns over time. Thorough coverage of political, economic,...http://books.google.com.pk/books/about/World_History.html?id=ZWTBUX10gaQC&utm_source=gb-gplus-shareWorld History