Yadav, R. C <br/><br/>
Mental mathematics 
R.C. Yadav 
 - 1st ed 
 - Gurgaon  Archna Publications (P) Ltd 
 - 82 p. : ill. bpk 
<br/><br/><label>ISBN: </label>9788187631446 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510 YAD