Singh, Sheelwant, <br/><br/>
Science and technology / 
Sheelwant Singh. 
 - 1 volume (various pagings) :  illustrations ;  26 cm. 
<br/><br/> For civil services preliminary and main examinations. 
<br/><br/><label>ISBN: </label>9789352864614  RM101.21 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Examinations, questions, etc.<br/>Technology--Study and teaching.<br/>Civil service--Examinations.--India