OPORPANN, P.P. <br/><br/>
Russian Language / 
[by] P.P. Oporpann 
 - Moscow  [s.n.]  1986 
 - 398 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Russian Language
<br/><br/><label>Dewey Class. No.: </label>491.7  / OPO