Welcome to quick word problems. 

 - Quezon City: :  Video Tutorial Service,  1992. 
 -  1 videodisc (VCD) (60 min) : sd., col. ; 4 3/4 in. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>VCD 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>LC Class. No.: </label>513 W44 c1992