Horwitz, William <br/><br/>
Official methods of analysis of the association of official analytical chemists  :11th ed. 

 - 11th ed. 
 - Washington  Association fo Official Analytical Chemists  1970 
<br/><br/><label>Subjects--Index Terms: </label>Analytical chemistry  alanlytical chemistry  Analytical chemistry  
<br/><br/><label>Dewey Class. No.: </label>543  / L0