Johnson, Raynor Carey,  1901- <br/><br/>
Spectra / 
by R. C. Johnson; with a general preface by O. W. Richardson 
 - London :  Methuen,  1932 
 - vii, 104 p. :  ill. ;  17 cm. 
 - Methuen's monographs on physical subjects .
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spectrum analysis<br/>Spectroscopy
<br/><br/><label>Dewey Class. No.: </label>535.84