Evans, David. , <br/><br/>
Powerbase :  elementary / 
David Evans. 
 - 120 pages :  color illustrations ;  28 cm ++  1 computer optical disc (4 3/4 in). 
<br/><br/><label>ISBN: </label>0582497558 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language --Study and teaching --Foreign speakers.<br/>English language --Spoken English --Study and teaching.
<br/><br/><label>LC Class. No.: </label>PE1128   / .E92 2002