Efimov, A. V..
The general trend of U.S. history /
A.V. Efimov, G.P. Kuropiatnik 
. - Moscow : Nauka,  Central Department of Oriental Literature,  1970 
. - 16 p.  20 cm. 
<br/><br/> Відбитка : XIII International Congress of historical sciences, Moscow, August 16-23, 1970.
<br/>К.: Бібліогр. : c. 14-16