Singh, Virender <br/><br/>
Adhunik daur me vigyan aur prodyogiyiki / 
Virender Singh 
 - Delhi :  Express Books,  2022. 
 - 168 p. :  ill. ;  22 cm. 
<br/><br/><label>ISBN: </label>9789383434367 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science and technology<br/>Modern science
<br/><br/><label>Dewey Class. No.: </label>500  / SIN/A