Understanding electricity. 

 - Quezon City :  Felta Multi Media,  c [?]. 
 -  1 videodisc (DVD) (55 mins) : sd., col.; 4 3/4 in.  Physical science; grades 6-12 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>DVD 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electricity
<br/><br/><label>LC Class. No.: </label>621.3 Un21 c[?]