Walter Dill Scott / Delton T. Howard... Kako uticati na druge (Veština pridobiti čoveka kao oruđe uspega - psihologija dokaza i sugestije)... --------
The Psychology of Advertising in Theory and Practice - Walter Dill Scott ---------
Charles Baudouin - Sugestion and Autosugestion ( a psyhological and pedagogical study based upon the investigations made by the New Nancy School ) --------
Kurt Honolka - Svetovna zgodovina glasbe