Barbu, Zevedei. Problems of historical psychology / Zevedei Barbu. - London : Routledge & Kegan Paul, c 1960. - x, 222 p. ; 22 cm. 316 316 Subjects--Topical Terms: Psychohistory. National characteristicsEnglish. Civilization -- history. Dewey Class. No.: 150 / B234p