Edwards, Derek. <br/><br/>
Common knowledge :  the development of understanding in the classroom / 
Derek Edwards and Neil Mercer. 
 - London :  Routledge,  1993. 
 - 193p ;  24 cm. 
<br/><br/> Originally published: Methuen, 1987. 
<br/><br/><label>ISBN: </label>0415043085 9780415043083