Work and energy [video recording].   

 - Cubao, Quezon City :   AGC Educational Media,  c?. 
 - 1videodisc (VCD)(29min.) col., sd. 4 3/4in. 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>VCD 531.6 W89211 2015