by Grigoriĭ Nikolaevich Sevostʹi︠a︡nov, Institut vseobshcheĭ istorii (Akademii︠a︡ nauk SSSR), R.S.F.S.R.) Vsesoi︠u︡znyĭ simpozium sovetskikh istorikov-amerikanistov. (1st 1971 Moscow