Heftmann,  Erich <br/><br/>
Chromatography  
Erich Heftmann.  
 - 2nd ed.  
 - New York   Van Nostrand Reinhold  1967 
 - xli, 83p.; 22cm. 
<br/><br/><label>Dewey Class. No.: </label>544.92  / H50C