Official methods of analysis of the association of official analytical chemists / 
Ed. by Kenneth helrich 
 - 15 
 - 2 volúmenes 
<br/><br/>Contenido: v. 1. agricultural chemicals, contaminant's, drugs. -- v. 2. food composition, additives, natural contaminants 
<br/><br/><label>ISBN: </label>0935584420  (obra completa) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Química agrícola--Tecnica<br/>Química analítica
<br/><br/><label>LC Class. No.: </label>S587  / O44 1990