Watts, W.Marshall. <br/><br/>
An Introduction to the Study of Spectrum Analysis /  Textual Documents 
W.Marshall Watts. 
 - 1st ed. / 
 - New York :  Longmans Green & Co ,  1904. 
 - 325p. :  ill ;  22cm . 
<br/><br/><label>Subjects--Index Terms: </label>Spectrum Analysis Physics G-Physics 
<br/><br/><label>Dewey Class. No.: </label>535.84  / W 349 In