Mugglestone, Patricia. <br/><br/>
Planning and using the blackboard/ 
Patricia Mugglestone. 
 - London :   George Allen and Unwin,  1986. 
 - 95 s. :   res. ;  20 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Blackboards.
<br/><br/><label>LC Class. No.: </label>PE1128.A2