Mathematics : Textbook for class VI 
NCERT (New Delhi India) 
 - New Delhi, India  NCERT Delhi  2006 
 - x,423p. 
<br/><br/><br/>Acc. 90885 is CSEC library. Same other books but size and page differ; Acc.No. 92537 and 92538 are gifted by Prof. Anita Rampal 
<br/><br/><label>Source: </label>Reference