Day, Reuben Alexander. <br/><br/>
Quantitative analysis / 
R. A. Day, Jr., A. L. Underwood. 
 - 4th ed. 
 - Englewood Cliffs, N.J. :  Prentrice-Hall,  1980. 
 - 660 p. :  ill. ;  25 cm. 
<br/><br/>p. 640-642. 
<br/><br/><label>ISBN: </label>0137465459 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry, Analytic--Quantitative.