Duckworth, H. E.  1915- <br/><br/>
Mass spectroscopy / 
Duckworth, H. E. 
 - Cambridge :  University Press,  1958. [Reprent 1960] 
 - 206 p. :  illus. ;  22 cm. 
<br/><br/>Includes bibliography. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass spectrometry.
<br/><br/><label>Dewey Class. No.: </label>543.65  / DUM 1960