Official methods of analysis of the Association of Official Analytical Chemists/ 
edited by Sidney Williams. 
 - 14th ed. 
 - Washington D. C.:  AOAC,  1984. 
 - xxvi, 1141p.:  ill.;  26cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry, Analytical.