Steiner, Rudolf, 1861-1925. Occult science : an outline / [by] Rudolf Steiner ; translated [from the German] by George and Mary Adams. - London : Rudolf Steiner Press, 1979. - 351 p. ; 23 cm. Translation with revisions of Die Geheimwissenschaft im Umriss. ISBN: 0854402071 : LCCN: 79322769 Nat. Bib. No.: GB79-26870 Subjects--Topical Terms: Anthroposophy. LC Class. No.: BP595 / .S851453 1979 Dewey Class. No.: 133 / STO 1969