Author: Dale Carnegie; Benjamin Franklin; Charles F. Haanel; Florence Scovel Shinn; Wallace D. Wattles; James Allen; Lao Tzu; Khalil Gibran; Orison Swett Marden; Abner Bayley; P.T. Barnum; Marcus Aurelius; Henry Thomas Hamblin; Joseph Murphy; William Crosbie Hunter; Ralph Waldo Emerson; Henry H. Brown; Russell H. Conwell; William Atkison; B.F. Austin; H.A. Lewis; L.W. Rogers; Douglas Fairbanks; Sun Tzu; Samuel Smiles
Author: National Research Council; Board on Agriculture; Committee on the Role of Alternative Farming Methods in Modern Production Agriculture; David E. Smiles