Sewell, Peter, et al. <br/><br/>
Chromatographic separations: Analytical chemistry by open learning / 
Sewell, Peter, et al. 
 -  ACOL, London,  1991 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chromatography; Analytic chemistry
<br/><br/><label>Dewey Class. No.: </label>543.089 SEW-C