Somerset thinking skills course.  Handbook / 
Nigel Blagg, Marj Ballinger, Richard Gardner. 
 - Oxford :  Basil Blackwell,  1988. 
 - 84p :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0631902716 9780631902713 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Problem solving.