3G E-learning <br/><br/>
Core concepts in physics:  sound and light / 

 - New York, New York :  3G E-Learning  2020. 
 - 248 pages : illustrations (some color) ; 24 cm + 1 DVD (4 3/4 in.) 3750 pages; 
<br/><br/><label>ISBN: </label>9781984637611 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sound-waves <br/>light (energy)
<br/><br/><label>Dewey Class. No.: </label>REF.535 C81