Sharma, Vishnu Dutt <br/><br/>
Vigyan muktavali 

 - Gaziabad  Shodh Prakashan  1999 
 - 334p. p. 
<br/><br/><label>ISBN: </label>81-900926-4-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science-Essay ;Hindi
<br/><br/><label>Dewey Class. No.: </label>500.8  / SHA