Bell,S.E <br/><br/>
Transformations and Symmetry 

 - London:  Longmans,  1968. 
 - 32 p.;  ill.  20 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>Dewey Class. No.: </label>372.7  / BEL