Ambāprasāda Sumana,  1916-1997. <br/><br/>
Hindī aura usakī upabhāshāoṃ kā svarūpa. 

 -  [1966] 
 - 12, 340 p.  illus., fold. map.  23 cm. 
<br/><br/> In Hindi. 
<br/><br/>Bibliographical notes. 
<br/><br/><label>LCCN: </label>sa 67003776  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hindi language--Dialects.
<br/><br/><label>LC Class. No.: </label>PK1939  / .S85