Aston, Francis William,  1877-1945 <br/><br/>
Mass spectra and isotopes / 
by F.W. Aston 
 - 2nd ed 
 - London :  Arnold,  1942, [Reprinted 1948] 
 - xii, 276 p. :  ill. ;  22 cm 
<br/><br/>Includes bibliographic and indexes  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Isotopes<br/>Mass spectrometry
<br/><br/><label>Dewey Class. No.: </label>541.2  / ASM 1948