Autor: William Earl, 5 titluri

Liz Coward,William Earl

Napoleon Hill,James Allen,William Walker Atkinson,Dr Joseph Murphy,Earl Nightingale,Russell H. Conwell,Theron Q. Dumont,Robert Collier,Louis M. Grafe,Orison Swett Marden,Julia Seton,Elizabeth Towne,Ralph Waldo Trine

Earl R. Babbie,William E. Wagner,Jeanne S. Zaino