Waldman, Carl. "Exploration of Asia." Ancient and Medieval History Online. Facts On File, 2004. Web. 8 Feb. 2011.
White, Pamela. "Marco Polo and His Travels." Ancient and Medieval History Online. Facts On File, 2005. Web. 8 Feb. 2011.
Woods, Michael, and Mary B. Woods. Ancient Transportation: from Camels to Canals. Minneapolis: Rinestone, 2000. Print.
No comments:
Post a Comment