Mathematics the first three yars 

 -  Chambers and John Murray,  1970. 
 - 150p.;  col ill.;  20cm 
<br/><br/><label>ISBN: </label>0-550-77060-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Primary Education
<br/><br/><label>Dewey Class. No.: </label>372.7  / MAT