Kolthoff, I. M. Laitinen, H. A. <br/><br/>
Ph and electro titrations  The colorimetric and potentiometric determination of ph. 

 - 2nd 
 - London  John Wiley  1957 
 - ix,190p. 
<br/><br/><label>Dewey Class. No.: </label>546.2  / K93P