Social psychology and history / by B. Porshnev. [Translated from the Russian by Ivan Savin] Porshnev, B. F. (Boris Fedorovich), 1905-1972. Lenin, Vladimir Ilʹich, 1870-1924. Social psychology. 302 POS Translation of Sot︠s︡ialʹnai︠a︡ psikhologii︠a︡ i istorii︠a︡. Includes bibliographical references. Moscow : Progress Publishers, 1970 1970 1970 Text 194 p. ; eng