Beiser, Arthur Mahajan, Shobhit Choudhury, S Rai. <br/><br/>
Concepts Of Modern Physics 

 - 6th ed 
 - New Delhi  Tata McGraw-Hill  2011 
 - p.611 
<br/><br/><label>ISBN: </label>9780070151550 
<br/><br/><label>Subjects--Topical Terms: </label> Time dilation  X-rays  Atomic Spectra  Laser 
<br/><br/><label>Dewey Class. No.: </label>539 B423C