Dave Barry (2012). “The Greatest Invention in the History of Mankind Is Beer: And Other Manly Insights from Dave Barry”, p.112, Andrews McMeel Publishing
P. J. O'Rourke (2007). “Give War a Chance: Eyewitness Accounts of Mankind's Struggle Against Tyranny, Injustice, and Alcohol-Free Beer”, p.110, Grove/Atlantic, Inc.