Townes C H <br/><br/>
Microwave spectroscopy. 
Townes C H; Schawlow A L 
 -  1975 
<br/><br/><label>Standard No.: </label>18802 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>D65264, L5