Edward Gibbon, Francis Parkman, William H. Prescott, Theodore Roosevelt (2012). “The Modern Library Essential World History 4-Book Bundle: The Decline and Fall of the Roman Empire (Abridged); Montcalm and Wolfe; History of the Conquest of Mexico; The Naval War of 1812”, p.1712, Modern Library
"'It Takes More Than That to Kill a Bull Moose': The Leader and The Cause". Theodore Roosevelt's address at Milwaukee, Wisconsin, given a few minutes after getting shot by some anarchist, www.businessinsider.com. October 14, 1912.