Social philosophies of an age of crisis / by Pitirim A. Sorokin Sorokin, Pitirim Aleksandrovich, 1889-1968. Sociology History. HM19 .S628 1952 100 SOS "This book is an enlarged version of my Cole lectures on 'Recent Philosophies of History,' presented in April, 1950, at the seventy-fifth anniversary of Vanderbilt University." Bibliographical references included in "Notes": p. [323]-341. London : A. & C. Black, 1952. 1952. 1952 Text xi, 345 p. ; eng