Textbook of elementary physics / 
G. S. Landsberg. 
 - Moscow :  Mr Publishers,  1972- 
 - 3 v. :  illus. ;  22 cm. 
<br/><br/>v.3. Oscillations and waves. Optics. Structure of atom. 
<br/><br/> Open access. 
<br/><br/><label>LCCN: </label>74168019  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics.