Prakticheskaya grammatika,  progress,  element. i bazovyi uroven / 
N. I. Soboleva...[et al.]. 
 - 183 s.  28 cm. 
<br/><br/><label>ISBN: </label>9785209025320 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Russian language--Grammar--Problems, exercises, etc.<br/>Russian language--Study and teaching
<br/><br/><label>LC Class. No.: </label>PG2106