Preston, Seaton T. <br/><br/>
A guide to analysis of hyrdrocarbons by gas chromatography / 
by Seaton T. Preston, Jr. 
 - 2nd ed. 
 - Evanston, Ill. :  PolyScience Corporation,  c1969. 
 - [various pagings] :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. D1 - D95. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrocarbons--Analysis.