Preston, Seaton T. <br/><br/>
A guide to the analysis of pesticides by gas chromatography. / 
Seaton T. Preston. 
 - 2nd ed. 
 - Illinois :  Polysicence Corporation,  1969. 
 - (in various pagings)  ill.  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pesticides--Analysis.<br/>Gas chromatography.