Thomas, Lawrence L..
Some notes on the Marr school /
Lawrence L. Thomas ; Institute of international studies, Center for slavic studies 
. - Berkeley : University of California,  1958 
. - p. 324-348  24 cm. 
<br/><br/> Reprinted from : The American Slavic and East European review ; v. 16, October 1957. Reprint ; no. 6.