Agriculture : a course of eight lectures given at Koberwitz, Silesia, 7th to 16th June, 1924 / by Rudolf Steiner ; English translation by George Adams ; preface by Ehrenfried Pfeiffer
Translated from German. Translation of: Geisteswissenschaftliche Grundlagen zum Gedeihen der Landwirtschaft. "Translated from shorthand reports unrevised by the lecturer"--T.p. verso.