Sorel, Georges, 1847-1922. The illusions of progress. Translated by John and Charlotte Stanley with a foreword by Robert A. Nisbet and an introd. by John Stanley. - Berkeley, University of California Press, 1969. - li, 222 p. 24 cm. Bibliographical footnotes. LCCN: 69016511 Subjects--Topical Terms: Progress.Socialism. LC Class. No.: HM101 / .S713 Dewey Class. No.: 907.2 / SOI 1969