Official methods of analysis of the association of official analytical chemists / 
editor William Horwitz 
 - 13 th ed. 
 - Washington, D. C. :  Association of Official Anaytical Chemists,  1980 
 - 1018 p. :  ill. ;  29 cm. 
<br/><br/><label>ISBN: </label>0935584145 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry, Analytic--Qualitative<br/>Chemistry, Analytic--Quantitative<br/>Chemistry, Analytic