Aston, Francis William,  1877- <br/><br/>
Mass spectra and isotopes / 
by F.W. Aston ... 
 - 2nd ed. 
 - London :  E. Arnold ,  1942 
 - xii, 276 p. :  plates, tables, diagrs. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Isotopes.<br/>Atomic weights.<br/>Spectrum analysis.
<br/><br/><label>Dewey Class. No.: </label>539.74 AST