William Lyon Phelps (2016). “A Collection of Classic Essays by William Lyon Phelps - Including 'Happiness', 'Superstition', 'The Great American Game', and Many More”, p.106, Read Books Ltd
William Lyon Phelps (2016). “A Collection of Classic Essays by William Lyon Phelps - Including 'Happiness', 'Superstition', 'The Great American Game', and Many More”, p.83, Read Books Ltd