Yarwood, Alf <br/><br/>
Focus on technology / 
Alf Yarwood and David Heywood 
 - London :  Hodder & Stoughton,  1990 
 - 188 p.  :  ill.  ;  28 cm. 
<br/><br/><label>ISBN: </label>0340414863  RM38.07 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology--Study and teaching<br/>Science--Study and teaching