Henry David Thoreau, Barry Andrews (2005). “True Harvest: Readings from Henry David Thoreau for Every Day of the Year”, p.125, Unitarian Universalist Association of Congregations
Mark Twain, John Sutton Tuckey (1980). “The Devil's Race-track: Mark Twain's Great Dark Writings : the Best from Which was the Dream? and Fables of Man”, p.337, Univ of California Press