Official and tentative methods of analysis of the Association of Official Agricultural Chemists. 

 - 6th ed. 
 - Washington :  A.O.A.C.,  1945. 
 - 932 p. :  il. ;  23 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Metodología<br/>Agricultura<br/>Análisis químico
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>631.42:542.2