books.google.it - 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 identify key global patterns over time. Tho...http://books.google.it/books/about/World_History_Volume_II.html?hl=it&id=ISj06t7g4LcC&utm_source=gb-gplus-shareWorld History, Volume II
