Materials and investigations on the history of Russian language 

 - Moscow  Izd. Akad. Nauk SSSR.  1962 
 - 224p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>P142v
<br/><br/><label>Dewey Class. No.: </label>P142v  / 142.I7.5