World War II 365 Days , Margaret E. Wagner, 2009. Abrams, New York in association with the Library of Congress.
The Real History of World War II: A new look at the Past, Alan Axelrod, 2008. Sterling Publishing Company.
Wikipedia
(http://www.wikipedia.org), Timeline of World War II
ehistory, (http://ehistory.osu.edu), a project of the OSU Department of History