Sealey, L. G. W. <br/><br/>
Beginning mathematics :  working with numbers  book four / 
L. G. W. Sealey, Vivian Gibbon. 
 - Oxford:   Blackwell,   1964.  
 - 30 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0631970401 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Primary)
<br/><br/><label>Dewey Class. No.: </label>372.7044