Aston, F. W.  1877- <br/><br/>
Mass spectra and isotopes / 
by F. W. Aston 
 - London :  Edward Arnold,  1933 
 - xii, 276 p. ;  22 cm. 
<br/><br/> "Second edition, 1942."  The first edition, issued as a revision of the author's "Isotopes," 1924, was published in 1933  Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Isotopes<br/>Spectrum analysis