Title: Learning theory
Subjects: Learning, Psychology of Learning, Correspondence, United States, American Diplomatic and consular service, Economic aspects, Rural conditions, United States. Dept. of Agriculture, Agriculture, University of Wichita, Foreign relations, Leertheorieen, Einfuhrung, Psychologie, Apprentissage, Psychologie de l', Lernpsychologie, Lerntheorie, Leerpsychologie