बलदेव राज गुप्ता (Baldev raj Guptha) <br/><br/>
भाषा विज्ञान 
 Bhasha vijnan 

 - New Delhi  Ayana publishing house  1984 
 - 188p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Official language<br/>Bhasha vijnan<br/>भाषा विज्ञान
<br/><br/><label>Dewey Class. No.: </label>811(H)'1  / BAL/B